What’s Vulnerable › Vulnerabilities
CVE-2025-40795
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-09-09 · updated 2026-10-23
- Weakness: CWE-121
Description
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), User Management Component (UMC) (All versions < V2.15.1.3). Affected products contain a stack-based buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to execute arbitrary code or to cause a denial of service condition.
Affected products
- Siemens SIMATIC PCS neo: 4.1, 5.0
- Siemens User Management Component: before 2.15.1.3 — fixed in 2.15.1.3
How to fix
Upgrade to a fixed version: Siemens User Management Component 2.15.1.3. Check the vendor advisory for mitigations.
References
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