What is CVE-2025-27539?

CVE-2025-27539 is a critical-severity vulnerability in Siemens Telecontrol Server Basic, classified under SQL Injection. CVSS score: 9.8/10. Published 2025-04-16.

How severe is CVE-2025-27539?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-27539 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Siemens Telecontrol Server Basic

CVE-2025-27539

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection through the internally used 'VerifyUser' method. This could allow an unauthenticated remote…

Vulnerability class: SQL Injection

EPSS: 0.008 (52.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Telecontrol Server Basic — versions 0
Siemens Telecontrol_server_basic

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

productcert@siemens.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-27539?: CVE-2025-27539 is a critical-severity vulnerability in Siemens Telecontrol Server Basic, classified under SQL Injection. CVSS score: 9.8/10. Published 2025-04-16.
How severe is CVE-2025-27539?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-27539 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.