SSA-452276

Siemens Security Advisory by Siemens ProductCERT

SSA-452276: Eval Injection Vulnerability in SIMATIC S7-1500

Publication Date:	2026-03-10
Last Update:	2026-03-19
Current Version:	V1.2
CVSS v3.1 Base Score:	9.6
CVSS v4.0 Base Score:	9.4

SUMMARY

SIMATIC S7-1500 devices contain a vulnerability that could allow an attacker to inject code by tricking a legitimate user into importing a specially crafted trace file in the web interface.

Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

KNOWN AFFECTED PRODUCTS

Un-/Collapse All

Affected Product and Versions	Remediation
SIMATIC Drive Controller family	Show more details
SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller (incl. SIPLUS variants)	Show more details
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)	Show more details
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V2 CPUs - Windows OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs	Show more details
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs - Industrial OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs - Windows OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 (incl. SIPLUS variants)	Show more details
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 (incl. SIPLUS variants) V2 CPUs - Windows OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 (incl. SIPLUS variants) V3 CPUs	Show more details
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 (incl. SIPLUS variants) V3 CPUs - Industrial OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC3 (incl. SIPLUS variants) V3 CPUs - Windows OS All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU family (incl. related ET 200 CPUs and SIPLUS variants)	Show more details
SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DK03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1512SP-1 PN (6ES7512-1DK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1512SP-1 PN (6ES7512-1DM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1514SP F-2 PN (6ES7514-2SN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1514SP-2 PN (6ES7514-2DN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1514SPT F-2 PN (6ES7514-2WN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC ET 200SP CPU 1514SPT-2 PN (6ES7514-2VN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AL03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CL03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FL03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TL03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UL03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513pro F-2 PN (6ES7513-2GM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1513pro-2 PN (6ES7513-2PM03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TM01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UM01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UN03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AP03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN02-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FP03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516pro F-2 PN (6ES7516-2GP03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516pro-2 PN (6ES7516-2PP03-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516T-3 PN (6ES7516-3TP10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516TF-3 PN (6ES7516-3UP10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1516TF-3 PN/DP (6ES7516-3UN00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517-3 PN (6ES7517-3AQ10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517-3 PN/DP (6ES7517-3AP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517F-3 PN (6ES7517-3FQ10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP01-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517T-3 PN (6ES7517-3TQ10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517TF-3 PN (6ES7517-3UQ10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1517TF-3 PN/DP (6ES7517-3UP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518-3 PN (6ES7518-3AT10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518-4 PN/DP (6ES7518-4AP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518F-3 PN (6ES7518-3FT10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518F-4 PN/DP (6ES7518-4FP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518T-3 PN (6ES7518-3TT10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518TF-3 PN (6ES7518-3UT10-0AB0) All versions < V4.1.2 affected by CVE-2025-40943	Update to V4.1.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109478459/ See further recommendations from section Mitigations
SIMATIC S7-1500 CPU 1518TF-4 PN/DP (6ES7518-4UP00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK (6ES7518-4AP00-3AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK (6ES7518-4FP00-3AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN (6ES7513-2GL00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN (6ES7513-2PL00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN (6ES7516-2GN00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN (6ES7516-2PN00-0AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP F-1 PN (6AG1510-1SJ01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL (6AG2510-1SJ01-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK01-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK02-1AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK01-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK02-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1515F-2 PN RAIL (6AG2515-2FM02-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL (6AG2515-2FM01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-7AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL (6AG2516-3AN02-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL (6AG2516-3AN01-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN01-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-2AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1518-4 PN/DP (6AG1518-4AP00-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIPLUS S7-1500 CPU 1518F-4 PN/DP (6AG1518-4FP00-4AB0) All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller	Show more details
SIMATIC S7-1500 Software Controller V2	Show more details
SIMATIC S7-1500 Software Controller CPU 1507S F V2 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1507S V2 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S F V2 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S V2 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller Linux V2 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller V3	Show more details
SIMATIC S7-1500 Software Controller CPU 1507S F V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1507S V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S F V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S T V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S TF V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller Linux V3 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller V4	Show more details
SIMATIC S7-1500 Software Controller CPU 1507S F V4 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1507S V4 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S F V4 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-1500 Software Controller CPU 1508S V4 All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations
SIMATIC S7-PLCSIM Advanced All versions affected by CVE-2025-40943	Currently no fix is available See further recommendations from section Mitigations

MITIGATIONS

Siemens has identified the following specific mitigations that customers can apply to reduce the risk:

Only upload trusted trace files
Disable the webserver if not required on the affected systems. Restrict the access to Port 80/tcp and 443/tcp to trusted IP address only

Product-specific remediations or mitigations can be found in the section Known Affected Products.
Please follow the General Security Recommendations.

GENERAL SECURITY RECOMMENDATIONS

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

PRODUCT DESCRIPTION

SIMATIC Drive Controllers have been designed for the automation of production machines, combining the functionality of a SIMATIC S7-1500 CPU and a SINAMICS S120 drive control.

SIMATIC ET 200SP Open Controller is a PC-based version of the SIMATIC S7-1500 Controller including optional visualization in combination with central I/Os in a compact device.

SIMATIC S7-1500 CPU products have been designed for discrete and continuous control in industrial environments such as manufacturing, food and beverages, and chemical industries worldwide.

SIMATIC S7-1500 MFP CPUs provide functionality of standard S7-1500 CPUs with the possibility to run C/C++ Code within the CPU-Runtime for execution of own functions / algorithms implemented in C/C++ and an additional second independent runtime environment to execute C/C++ applications parallel to the STEP 7 program if required.

SIMATIC S7-1500 ODK CPUs provide functionality of standard S7-1500 CPUs but additionally provide the possibility to run C/C++ Code within the CPU-Runtime for execution of own functions / algorithms implemented in C/C++. They have been designed for discrete and continuous control in industrial environments such as manufacturing, food and beverages, and chemical industries worldwide.

SIMATIC S7-1500 Software Controller is a SIMATIC software controller for PC-based automation solutions.

SIMATIC S7-PLCSIM Advanced simulates S7-1200, S7-1500 and a few other PLC derivatives. Includes full network access to simulate the PLCs, even in virtualized environments.

VULNERABILITY DESCRIPTION

Un-/Collapse All

This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

Vulnerability CVE-2025-40943

Affected devices do not properly sanitize contents of trace files.

This could allow an attacker to inject code through social engineering an authorized user, who has the function right "Read diagnostics", to import a specially crafted trace file.

The malicious trace file is insufficiently sanitized and malicious code could be executed in the clients browser session and trigger PLC operations via the webserver that the legitimate user is authorized to perform.

CVSS v3.1 Base Score	9.6
CVSS v3.1 Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0 Base Score	9.4
CVSS v4.0 Vector	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE	CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

ACKNOWLEDGMENTS

Siemens thanks the following party for its efforts:

Lukas Sohrmann for reporting the vulnerability

ADDITIONAL INFORMATION

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

HISTORY DATA

V1.0 (2026-03-10):	Publication Date
V1.1 (2026-03-13):	Removed S7-1500 R/H CPU variants as they are not affected by CVE-2025-40943
V1.2 (2026-03-19):	Adjusted title, CVE description enrichment and CWE adjustment

The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.