CVE-2025-40566

State: Published
Severity: 8.7 High
Published: May 13, 2025
Updated: May 13, 2025
Reserved: Apr 16, 2025

Description

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 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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	siemens
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	siemens

Weaknesses

CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
SIMATIC PCS neo V4.1Siemens	before V4.1 Update 3Affected
SIMATIC PCS neo V5.0Siemens	before V5.0 Update 1Affected

References

https://cert-portal.siemens.com/productcert/html/ssa-339086.html

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