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Description

Tinycontrol devices such as tcPDU and LAN Controllers LK3.5, LK3.9 and LK4 allow a low privileged user to read an administrator's password by directly accessing a specific resource inaccessible via a graphical interface. 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).

PUBLISHED Reserved 2026-02-20 | Published 2026-03-16 | Updated 2026-03-16 | Assigner CERT-PL




HIGH: 8.6CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-425 Direct Request ('Forced Browsing')

Product status

Default status
unaffected

Any version before 1.67
affected

Default status
unaffected

Any version before 1.75
affected

Default status
unaffected

Any version before 1.38
affected

Default status
unaffected

Any version before 1.36
affected

References

cert.pl/en/posts/2026/03/CVE-2025-11500/ third-party-advisory

tinycontrol.pl/en/archives/lan-controller-35/downloads/ release-notes

tinycontrol.pl/en/lk39/downloads/ release-notes

tinycontrol.pl/en/lk4/downloads/ release-notes

tinycontrol.pl/en/tcpdu/downloads/ release-notes

cve.org (CVE-2025-15587)

nvd.nist.gov (CVE-2025-15587)

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