CVE-2025-40566

Published: May 13, 2025Updated: Aug 22, 2025 Sources: CVE List NVD BDU csafCWE-613

8.8HIGH

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-613

Affected Products

Siemens AG

commercial·DEaka siemens

and 1 more affected products View all →

Exploitability

Official Patch Available

Is your org exposed to CVE-2025-40566?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Defense Evasion

Initial Access

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References

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

cert-portal.siemens.com

https://nvd.nist.gov/vuln/detail/CVE-2025-40566

nvd.nist.gov

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

cert-portal.siemens.com

and 8 more references View all →

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