Missing Authentication for Critical Function in TeleControl Server Basic - CVE-2025-40765

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Main Vulnerability Database Vulnerabilities #VU117620

Missing Authentication for Critical Function in TeleControl Server Basic - CVE-2025-40765

Published: October 23, 2025


Vulnerability identifier: #VU117620
CSH Severity: High
CVSS v4.0: 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
CVE-ID: CVE-2025-40765
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Siemens
Affected software:
TeleControl Server Basic

Detailed vulnerability description

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.


How to mitigate CVE-2025-40765

Install updates from vendor's website.

Sources