8.7
HIGH CVSS 4.0
CVE-2025-11500
Credentials exposure in tinycontrol devices
Description

Tinycontrol devices such as tcPDU and LAN Controllers LK3.5, LK3.9 and LK4 have two separate authentication mechanisms - one solely for interface management and one for protecting all other server resources. When the latter is turned off (which is a default setting), an unauthenticated attacker on the local network can obtain usernames and encoded passwords for interface management portal by inspecting the HTTP response of the server when visiting the login page, which contains a JSON file with these details. Both normal and admin users credentials are exposed.  This issue has been fixed in firmware versions: 1.36 (for tcPDU), 1.67 (for LK3.5 - hardware versions: 3.5, 3.6, 3.7 and 3.8), 1.75 (for LK3.9 - hardware version 3.9) and 1.38 (for LK4 - hardware version 4.0).

INFO

Published Date :

March 16, 2026, 9:26 a.m.

Last Modified :

March 16, 2026, 9:26 a.m.

Remotely Exploit :

No

Source :

CERT-PL
Affected Products

The following products are affected by CVE-2025-11500 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 4bb8329e-dd38-46c1-aafb-9bf32bcb93c6
Solution
Update firmware to a patched version to resolve credential exposure.
  • Update tcPDU firmware to version 1.36 or later.
  • Update LK3.5 firmware to version 1.67 or later.
  • Update LK3.9 firmware to version 1.75 or later.
  • Update LK4 firmware to version 1.38 or later.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-11500 vulnerability anywhere in the article.

  • cert.pl
Vulnerabilities in multiple tinycontrol devices

Vulnerabilities in multiple tinycontrol devices CVE ID CVE-2025-11500 Publication date 16 March 2026 Vendor tinycontrol Product tcPDU and LAN Controllers: LK3.5, LK3.9 and LK4 Vulnerable versions Befo ... Read more

Published Date: Mar 16, 2026 (30 minutes ago)
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.