CVE-2023-53739

Tinycontrol LAN Controller v3 LK3 1.58a Unauthenticated Configuration Backup Disclosure

9.9 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.63%Up 0.3 points since Dec 10, 2025

What each source reports

CVE List Score used 9.9

Tinycontrol LAN Controller v3 LK3 1.58a Unauthenticated Configuration Backup Disclosure

Record: CVE-2023-53739
CVSS 4.0: 9.9 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Weakness: CWE-260
Updated: 2026-11-02

EUVDEUVD-2023-60177 9.9

Record: EUVD-2023-60177
CVSS 4.0: 9.9 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-vqf5-jvfh-997c 9.9

Tinycontrol LAN Controller v3 LK3 version 1.58a contains an unauthenticated vulnerability that...

Record: GHSA-vqf5-jvfh-997c
CVSS 4.0: 9.9 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-260
Updated: 2026-11-02

NVD 9.9

Record: CVE-2023-53739
CVSS 4.0: 9.9 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-260
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-53739 is a critical vulnerability (CVSS 9.9) in Tinycontrol Lk, published December 9, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. No source names a fixed version.