Read the docs
TI-2025-27227 Aliases CVE-2025-40765GHSA-qp9r-4cqh-77h3

Missing authentication in Siemens TeleControl Server Basic V3.1

Priority MEDIUM 41CWE-306Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

A vulnerability has been identified in TeleControl Server Basic V3.1 (All versions >= V3.1.2.2 < V3.1.2.3). The affected application contains an information disclosure vulnerability. This could allow an unauthenticated remote attacker to obtain password hashes of users and to login to and perform authenticated operations of the database service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00534 45th percentileScored 2026-11-07
Fix Fixed TeleControl Server Basic V3.1 (Siemens): V3.1.2.3

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 Basic V3.1V3.1.2.2 to before V3.1.2.3V3.1.2.3Patch availableCNA
  • TeleControl Server Basic V3.1 VendorSiemens Affected V3.1.2.2 to before V3.1.2.3 Fixed in V3.1.2.3 Patch available CNA

CPE configurations NVD · 1

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

Remediation

  • Fix · CNA TeleControl Server Basic V3.1 (Siemens) Fixed in V3.1.2.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40765
  2. 2026-10-03 Alias added: GHSA-qp9r-4cqh-77h3

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