SB2025052025 - Insufficient Session Expiration in Siemens SIMATIC PCS neo
Published: May 20, 2025
Security Bulletin ID
SB2025052025
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Insufficient Session Expiration (CVE-ID: CVE-2025-40566)
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 update from vendor's website.