CVE-2025-40566

Published: May 13, 2025Modified: Aug 22, 2025

8.7

Vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: productcert@siemens.com (Secondary)

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.

Affected (5)

Products: Siemens: Simatic Pcs Neo

Siemens

1 product

Simatic Pcs Neo

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Siemens Simatic Pcs Neo	Before 4.1
Siemens Simatic Pcs Neo	Before 5.0
Siemens Simatic Pcs Neo	Version 4.1 update_1
Siemens Simatic Pcs Neo	Version 4.1 update_2
Siemens Simatic Pcs Neo	Version 5.0

Related CWEs

CWE-613

Insufficient Session Expiration

According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."

References (1)

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

Source: productcert@siemens.com

Vendor Advisory

Timeline

No history available yet.