{ "document": { "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)", "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "summary", "text": "KACO blueplanet Inverters contain multiple vulnerabilities that could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access.\n\nKACO new energy GmbH has released new versions for several affected products and recommends to update to the latest versions. KACO new energy GmbH is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.", "title": "Summary" }, { "category": "general", "text": "Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design.\nSiemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. \nAs a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment.\n\nRecommended security guidelines can be found at:\nhttps://www.siemens.com/gridsecurity", "title": "General Recommendations" }, { "category": "general", "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories", "title": "Additional Resources" }, { "category": "legal_disclaimer", "text": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "productcert@siemens.com", "name": "Siemens ProductCERT", "namespace": "https://www.siemens.com" }, "references": [ { "category": "self", "summary": "SSA-545643: Multiple Vulnerabilities in KACO Blueplanet Inverters - HTML Version", "url": "https://cert-portal.siemens.com/productcert/html/ssa-545643.html" }, { "category": "self", "summary": "SSA-545643: Multiple Vulnerabilities in KACO Blueplanet Inverters - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-545643.json" } ], "title": "SSA-545643: Multiple Vulnerabilities in KACO Blueplanet Inverters", "tracking": { "current_release_date": "2026-05-12T00:00:00.000Z", "generator": { "engine": { "name": "Siemens ProductCERT CSAF Generator", "version": "1" } }, "id": "SSA-545643", "initial_release_date": "2026-05-12T00:00:00.000Z", "revision_history": [ { "date": "2026-05-12T00:00:00.000Z", "legacy_version": "1.0", "number": "1", "summary": "Publication Date" } ], "status": "interim", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet 100 NX3 M8", "product_id": "1" } } ], "category": "product_name", "name": "blueplanet 100 NX3 M8" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet 100 TL3 GEN2", "product_id": "2" } }, { "category": "product_version_range", "name": "vers:intdot/<6.1.4.9", "product": { "name": "blueplanet 100 TL3 GEN2", "product_id": "3" } } ], "category": "product_name", "name": "blueplanet 100 TL3 GEN2" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet 105 TL3", "product_id": "4" } } ], "category": "product_name", "name": "blueplanet 105 TL3" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet 105 TL3 GEN2", "product_id": "5" } }, { "category": "product_version_range", "name": "vers:intdot/<6.1.4.9", "product": { "name": "blueplanet 105 TL3 GEN2", "product_id": "6" } } ], "category": "product_name", "name": "blueplanet 105 TL3 GEN2" }, { "branches": [ { "category": "product_version_range", 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"product_id": "37" } } ], "category": "product_name", "name": "blueplanet gridsafe 137 TL3-S" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet gridsafe 92.0 TL3-S", "product_id": "38" } }, { "category": "product_version_range", "name": "vers:intdot/<3.91", "product": { "name": "blueplanet gridsafe 92.0 TL3-S", "product_id": "39" } } ], "category": "product_name", "name": "blueplanet gridsafe 92.0 TL3-S" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet hybrid 10.0 TL3", "product_id": "40" } } ], "category": "product_name", "name": "blueplanet hybrid 10.0 TL3" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "blueplanet hybrid 6.0 NH3-12.0 NH3", "product_id": "41" } } ], "category": "product_name", "name": "blueplanet hybrid 6.0 NH3-12.0 NH3" } ], "category": "vendor", "name": "Siemens" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-40946", "cwe": { "id": "CWE-321", "name": "Use of Hard-coded Cryptographic Key" }, "flags": [ { "label": "component_not_present", "product_ids": [ "41", "22", "25", "23", "27", "40", "26" ] } ], "notes": [ { "category": "summary", "text": "A CRC16-based algorithm for generating Technical Service credentials could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access.", "title": "Summary" } ], "product_status": { "known_affected": [ "1", "3", "4", "6", "7", "8", "9", "11", "12", "13", "15", "16", "18", "19", "21", "24", "28", "30", "31", "33", "34", "36", "39" ], "known_not_affected": [ "22", "23", "25", "26", "27", "40", "41" ] }, "remediations": [ { "category": "no_fix_planned", "details": "Currently no fix is planned", "product_ids": [ "24" ] }, { "category": "none_available", "details": "Currently no fix is available", "product_ids": [ "1", "4", "7", "8", "9", "12", "13", "16", "19", "28", "31" ] }, { "category": "vendor_fix", "details": "Update to V3.91 or later version", "product_ids": [ "34", "36", "39" ], "url": "https://kaco-newenergy.com/service/mykacocom-customer-portal" }, { "category": "vendor_fix", "details": "Update to V6.1.4.9 or later version", "product_ids": [ "3", "6", "11", "15", "18", "21", "30", "33" ], "url": "https://kaco-newenergy.com/service/mykacocom-customer-portal" } ], "scores": [ { "cvss_v3": { "baseScore": 8.3, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H", "version": "3.1" }, "products": [ "1", "3", "4", "6", "7", "8", "9", "11", "12", "13", "15", "16", "18", "19", "21", "24", "28", "30", "31", "33", "34", "36", "39" ] } ], "threats": [ { "category": "impact", "details": "Different code base compared to affected products.", "product_ids": [ "41", "22", "25", "23", "27", "40", "26" ] } ], "title": "CVE-2025-40946" }, { "cve": "CVE-2026-41125", "cwe": { "id": "CWE-89", "name": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')" }, "flags": [ { "label": "component_not_present", "product_ids": [ "41", "22", "25", "23", "27", "40", "26" ] } ], "notes": [ { "category": "summary", "text": "Improper neutralization of special elements used in an sql command ('sql injection') in KACO Meteor server allows an authorized attacker to elevate privileges over a local network.", "title": "Summary" } ], "product_status": { "known_affected": [ "1", "2", "4", "5", "7", "8", "9", "10", "12", "13", "14", "16", "17", "19", "20", "28", "29", "31", "32", "35", "37", "38" ], "known_not_affected": [ "22", "23", "25", "26", "27", "40", "41" ] }, "remediations": [ { "category": "none_available", "details": "Currently no fix is available", "product_ids": [ "1", "2", "4", "5", "7", "8", "9", "10", "12", "13", "14", "16", "17", "19", "20", "28", "29", "31", "32", "35", "37", "38" ] } ], "scores": [ { "cvss_v3": { "baseScore": 6.0, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H", "version": "3.1" }, "products": [ "1", "2", "4", "5", "7", "8", "9", "10", "12", "13", "14", "16", "17", "19", "20", "28", "29", "31", "32", "35", "37", "38" ] } ], "threats": [ { "category": "impact", "details": "Different code base compared to affected products.", "product_ids": [ "41", "22", "25", "23", "27", "40", "26" ] } ], "title": "CVE-2026-41125" } ] }