CVE-2025-40566

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-339086.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:siemens:simatic_pcs_neo::::::::
	cpe:2.3:a:siemens:simatic_pcs_neo::-::::::*
	cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_1::::::
	cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_2::::::
	cpe:2.3:a:siemens:simatic_pcs_neo:5.0:-::::::

History

22 Aug 2025, 20:28

Type	Values Removed	Values Added
CPE		cpe:2.3:a:siemens:simatic_pcs_neo:::::::: cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_1:::::: cpe:2.3:a:siemens:simatic_pcs_neo:5.0:-:::::: cpe:2.3:a:siemens:simatic_pcs_neo:4.1:update_2:::::: cpe:2.3:a:siemens:simatic_pcs_neo::-::::::*
First Time		Siemens Siemens simatic Pcs Neo
References	~~() https://cert-portal.siemens.com/productcert/html/ssa-339086.html -~~	() https://cert-portal.siemens.com/productcert/html/ssa-339086.html - Vendor Advisory

13 May 2025, 19:35

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-13 10:15

Updated : 2025-08-22 20:28

NVD link : CVE-2025-40566

Mitre link : CVE-2025-40566

CVE.ORG link : CVE-2025-40566

JSON object : View

Products Affected

siemens

simatic_pcs_neo

CWE

CWE-613

Insufficient Session Expiration

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