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Vulnerability record · CVE-2025-40765 · published 14 October 2025

CVE-2025-40765: Siemens telecontrol server basic missing authentication for critical function vulnerability

Siemens · Telecontrol Server Basic

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.

9.3 CVSS 4.0 Critical EPSS 0.53% · top 57.2% CWE-306 · Missing authentication for critical function
9.3CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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.

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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/html/ssa-062309.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2024-44102Siemens telecontrol server basic deserialization of untrusted data vulnerabilityA vulnerability has been identified in PP TeleControl Server Basic 1000 to 5000 V3.1 (6NH9910-0AA31-0AE1) (All versions < V3.1.2.1 with redundancy co…EPSS 1.00%9.3CVE-2025-27495Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 1.0%9.3CVE-2025-27539Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 1.0%9.3CVE-2025-27540Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 0.99%8.8CVE-2018-4836Siemens telecontrol server basic improper authentication vulnerabilityA vulnerability has been identified in TeleControl Server Basic < V3.1. An authenticated attacker with a low-privileged account to the TeleControl Se…EPSS 1.8%8.7CVE-2025-32872Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 0.70%8.7CVE-2025-32866Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 0.70%8.7CVE-2025-32867Siemens telecontrol server basic sql injection vulnerabilityA vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection th…EPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2025-40765), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.