Access Control Issue in Tinycontrol Products by Tinycontrol
CVE-2025-15587

8.6HIGH

Key Information:

Vendor

Tinycontrol

Status
Lan Kontroler V3.5
Lk3.9
Lk4
Tcpdu
Vendor
CVE Published:
16 March 2026

What is CVE-2025-15587?

Tinycontrol devices, including tcPDU and various LAN Controllers, exhibit an access control vulnerability that allows low privileged users to obtain an administrator's password. This unauthorized access occurs through a specific resource that is not protected via the graphical interface. The issue is addressed in firmware updates, reinforcing the need for users to upgrade to the respective secure versions to mitigate potential risks.

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Affected Version(s)

Lan Kontroler v3.5 0 < 1.67

LK3.9 0 < 1.75

LK4 0 < 1.38

References

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

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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