Improper authentication in Siemens PowerSys
Priority LOW 38CWE-287Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
A vulnerability has been identified in PowerSys (All versions < V3.11). The affected application insufficiently protects responses to authentication requests. This could allow a local attacker to bypass authentication, thereby gaining administrative privileges for the managed remote devices.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00155 4th percentileScored 2026-11-07
Fix Fixed PowerSys (Siemens): V3.11
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA PowerSys (Siemens) Fixed in V3.11
Timeline
- 2026-10-02 Threatist record created from CVE-2024-36266
- 2026-10-03 Alias added: GHSA-v3v4-h24m-3cr8
References
Sources
- CVE-2024-36266 · CVE Program
- CVE-2024-36266 · NVD
- FIRST EPSS
- GHSA-v3v4-h24m-3cr8 · GitHub Advisory Database · CC BY 4.0
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