CVE-2025-29931: siemens telecontrol_server_basic

Vulnerability summary

CVE-2025-29931 is a medium (CVSS 6.3) vulnerability in siemens telecontrol_server_basic. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.1% of scored vulnerabilities.

Timeline

1. 17-04-2025
   PublishedVulnerability first disclosed.
2. 17-04-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected product does not properly validate a length field in a serialized message which it uses to determine the amount of memory to be allocated for deserialization. This could allow an unauthenticated remote attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a partial denial of service condition. Successful exploitation is only possible in redundant Telecontrol Server Basic setups and only if the connection between the redundant servers has been disrupted.

• CWE-130Improper Handling of Length Parameter InconsistencyThe product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.