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TI-2025-21313 Aliases CVE-2025-29931GHSA-5659-7353-7w5p

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2).

Priority LOW 28CWE-130Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00444 38th percentileScored 2026-11-07
Fix Fixed TeleControl Server Basic (Siemens): V3.1.2.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensTeleControl Server Basicbefore V3.1.2.2V3.1.2.2Patch availableCNA
  • TeleControl Server Basic VendorSiemens Affected before V3.1.2.2 Fixed in V3.1.2.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*before 3.1.2.2VulnerableSiemens
  • cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:* Versions before 3.1.2.2 Vulnerable ·Siemens

Remediation

  • Fix · CNA TeleControl Server Basic (Siemens) Fixed in V3.1.2.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29931
  2. 2026-10-03 Alias added: GHSA-5659-7353-7w5p

References

Advisory 1

  • TI-2024-29679 Deserialization of untrusted data in Siemens PP TeleControl Server Basic 1000 to 5000 V3.1 CVSS 4.0CRITICAL 10.0
  • TI-2025-20369 SQL injection in Siemens TeleControl Server Basic CVSS 4.0CRITICAL 9.3
  • TI-2025-20368 SQL injection in Siemens TeleControl Server Basic CVSS 4.0CRITICAL 9.3
  • TI-2025-20330 SQL injection in Siemens TeleControl Server Basic CVSS 4.0CRITICAL 9.3
  • TI-2019-04628 Improper handling of exceptional conditions in Siemens SIMATIC CP 443-1 OPC UA CVSS 3.1HIGH 7.5
  • TI-2018-03413 Improper authentication in Siemens TeleControl Server Basic CVSS 3.0HIGH 8.8
See all 76 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences