CVE-2025-27540

Description

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 'Authenticate' method. This could allow an unauthenticated remote attacker to bypass authorization controls, to read from and write to the application's database and execute code with "NT AUTHORITY\NetworkService" permissions. A successful attack requires the attacker to be able to access port 8000 on a system where a vulnerable version of the affected application is executed on. (ZDI-CAN-25913)

Category

9.3
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.14%
Affected: Siemens TeleControl Server Basic
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-27540?
CVE-2025-27540 has been scored as a critical severity vulnerability.
How to fix CVE-2025-27540?
To fix CVE-2025-27540, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27540 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27540 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-27540?
CVE-2025-27540 affects Siemens TeleControl Server Basic.
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