SB20251210191 - Improper Certificate Validation in Siemens IAM Client
Published: December 10, 2025
Security Bulletin ID
SB20251210191
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2025-40800)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper certificate validation in the IAM client. A remote attacker can perform a man-in-the-middle (MitM) attack.
Remediation
Install update from vendor's website.