Siemens IAM Client Unquoted Path Flaw
An unquoted search path bug in Siemens IAM Client SDK lets local authenticated users escalate privileges across multiple Siemens engineering products.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CISA republished a Siemens ProductCERT advisory describing CVE-2025-40945, an untrusted/unquoted search path vulnerability (CWE-426) affecting the IAM Client SDK used across a wide range of Siemens industrial and engineering software, including COMOS, Solid Edge, Teamcenter Visualization, Simcenter products, and Tecnomatix Plant Simulation. The flaw could allow an authenticated local attacker to escalate privileges by exploiting the way the affected software searches for executables in an untrusted path.
Siemens has released patched versions for most affected products and is preparing fixes for the remaining ones, providing update links per product. No public exploitation has been reported; the vulnerability requires local authenticated access rather than remote network access, limiting its immediate risk. Affected sectors per Siemens include chemical, critical manufacturing, and energy, with deployments worldwide from a Germany-headquartered vendor. CISA recommends standard ICS network isolation and defense-in-depth practices alongside applying vendor patches.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-05
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