#VU109456 Insufficient Session Expiration in SIMATIC PCS neo - CVE-2025-40566

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Main Vulnerability Database Vulnerabilities #VU109456

#VU109456 Insufficient Session Expiration in SIMATIC PCS neo - CVE-2025-40566

Published: May 20, 2025


Vulnerability identifier: #VU109456
Vulnerability risk: High
CVSSv4.0: 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:U/U:Amber
CVE-ID: CVE-2025-40566
CWE-ID: CWE-613
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SIMATIC PCS neo
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient session expiration issue. A remote attacker can obtain or guess session token and re-use a legitimate user's session even after logout.


Remediation

Install updates from vendor's website.

External links