Siemens SIMATIC PCS
view advisory published 2025-05-13
Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout. Siemens has released new versions for the affected products and recommends to update to the latest versions.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-40566US | critical9.8 | — | ||
A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly… | ||||
02
references
External citations — patches, advisories, analysis.
- SSA-339086: Insufficient Session Expiration Vulnerability in SIMATIC PCS neo - CSAF Versionself
- SSA-339086: Insufficient Session Expiration Vulnerability in SIMATIC PCS neo - HTML Versionself
- ICS Advisory ICSA-25-135-12 JSONself
- Recommended Practicesexternal
- ICS Advisory ICSA-25-135-12 - Web Versionself
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
03
remediations (2)
- FixedSIMATIC PCS neo V4.1
Update to V4.1 Update 3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109978820/ - FixedSIMATIC PCS neo V5.0
Update to V5.0 Update 1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109977244/
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