CVE-2023-53739: Tinycontrol Lk

Critical severity, CVSS 9.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Tinycontrol LAN Controller v3 LK3 version 1.58a contains an unauthenticated vulnerability that allows remote attackers to download configuration backup files containing sensitive credentials. Attackers can retrieve the lk3_settings.bin file and extract base64-encoded user and admin passwords without authentication.

Affected products

• Tinycontrol Lk: up to and including 1.58a
• Tinycontrol Tinycontrol Lan Controller V: up to and including 1.58a

Published 2025-12-09. Last modified 2026-06-17.