Publication Date:
Last Update:
Current Version: V1.0
CVSS v3.1 Base Score: 9.9
Affected Product and Versions Remediation

All versions < V20.2 HotfixRev14

All versions < V20.3 HotfixRev12

All versions < V21.1 HotfixRev12

All versions < V21.2 HotfixRev8

All versions < V22.1 HotfixRev7

All versions < V22.2 HotfixRev5

All versions < V22.3 HotfixRev2

All versions < V23.1 HotfixRev1

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

As a general security measure Siemens strongly recommends to protect network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment.

The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.

An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/.

CVSS v3.1 Base Score 9.9
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE CWE-502: Deserialization of Untrusted Data
CVSS v3.1 Base Score 9.9
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE CWE-502: Deserialization of Untrusted Data

  • Milestone PSIRT for reporting and coordinated disclosure

The provided cumulative hotfix releases include the fixes for both Event Server (ES) and Management Server (MS). Ensure to apply the fixes on all relevant servers in your deployment.

For additional information regarding the vulnerabilities see the related Milestone Security Advisories:

https://www.siemens.com/cert/advisories

V1.0 (2023-05-09): Publication Date