Read the docs
TI-2025-10536 Aliases CVE-2025-11500GHSA-822w-crcw-46rx

Credentials exposure in tinycontrol devices

Priority MEDIUM 40CWE-201Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-201.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Fix Fixed Lan Kontroler v3.5 (tinycontrol): 1.67LK3.9 (tinycontrol): 1.75+2 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
tinycontrolLan Kontroler v3.5before 1.671.67Patch availableCNA
tinycontrolLK3.9before 1.751.75Patch availableCNA
tinycontrolLK4before 1.381.38Patch availableCNA
tinycontroltcPDUbefore 1.361.36Patch availableCNA
  • Lan Kontroler v3.5 Vendortinycontrol Affected before 1.67 Fixed in 1.67 Patch available CNA
  • LK3.9 Vendortinycontrol Affected before 1.75 Fixed in 1.75 Patch available CNA
  • LK4 Vendortinycontrol Affected before 1.38 Fixed in 1.38 Patch available CNA
  • tcPDU Vendortinycontrol Affected before 1.36 Fixed in 1.36 Patch available CNA

Remediation

  • Fix · CNA Lan Kontroler v3.5 (tinycontrol) Fixed in 1.67
  • Fix · CNA LK3.9 (tinycontrol) Fixed in 1.75
  • Fix · CNA LK4 (tinycontrol) Fixed in 1.38
  • Fix · CNA tcPDU (tinycontrol) Fixed in 1.36

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    tinycontrol LK3.9, LK4 and 2 more products 1.36, 1.38 and 2 more versions

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2025-14225 Credentials exposure in tinycontrol devicesPriority LOW 38
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-11500
  2. 2026-10-03 Alias added: GHSA-822w-crcw-46rx
  3. 2026-10-13 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 5

  • TI-2023-30026 Tinycontrol LAN Controller v3 LK3 1.58a Unauthenticated Configuration Backup Disclosure CVSS 4.0CRITICAL 9.9
  • TI-2023-30601 Tinycontrol LAN Controller 1.58a Authentication Bypass via Admin Password Change CVSS 4.0CRITICAL 9.3
  • TI-2023-06696 Tinycontrol LAN Controller v3 (LK3) Remote DoS CVSS 4.0HIGH 8.7
  • TI-2025-14225 Credentials exposure in tinycontrol devices CVSS 4.0HIGH 8.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences