Vulnerability details

CVE-2025-15587

tinycontrol LK3.9tinycontrol LK4tinycontrol Lan Kontrolertinycontrol tcPDU

Credentials exposure in tinycontrol devices

CVSS 4.0

8.6High

Official 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).

CVSS scores

Score	Version	Source	Vector
8.6High	4.0	CVEProject cvelistV5 (CNA) (CERT-PL)	`CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

Affected products

Vendor	Product	Versions	Source
tinycontrol	LK3.9	v < 1.75	CVEProject cvelistV5 (CNA)
tinycontrol	LK4	v < 1.38	CVEProject cvelistV5 (CNA)
tinycontrol	Lan Kontroler v3.5	v < 1.67	CVEProject cvelistV5 (CNA)
tinycontrol	tcPDU	v < 1.36	CVEProject cvelistV5 (CNA)

References and advisories

https://cert.pl/en/posts/2026/03/CVE-2025-11500/ third-party-advisory
https://tinycontrol.pl/en/archives/lan-controller-35/downloads/#firmware release-notes
https://tinycontrol.pl/en/lk39/downloads/#firmware release-notes
https://tinycontrol.pl/en/lk4/downloads/#firmware release-notes
https://tinycontrol.pl/en/tcpdu/downloads/#firmware release-notes

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Details

Published: 2026-03-16
Last updated: 2026-03-16
State: Published
Assigner (CNA): CERT-PL

Exploit prediction (EPSS)

0.17%

Probability of exploitation in 30 days

6.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-425
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