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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.

PUBLISHED Reserved 2025-04-16 | Published 2025-05-13 | Updated 2025-05-13 | Assigner siemens




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

Problem types

CWE-613: Insufficient Session Expiration

Product status

Default status
unknown

Any version before V4.1 Update 3
affected

Default status
unknown

Any version before V5.0 Update 1
affected

References

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

cve.org (CVE-2025-40566)

nvd.nist.gov (CVE-2025-40566)

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