SB20251023101 - Missing Authentication for Critical Function in Siemens TeleControl Server Basic
Published: October 23, 2025
Security Bulletin ID
SB20251023101
CSH 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 vulnerability.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2025-40765)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing authentication for critical function. A remote attacker can obtain password hashes of users, login to and perform authenticated operations of the database service.
Remediation
Install update from vendor's website.