Critical 9.9Published Dec 9, 2025

CVE-2023-53739Tinycontrol LAN Controller v3 LK3 1.58a Unauthenticated Configuration Backup Disclosure

Updated under an hour ago (Oct 27, 2026, 9:40 AM ET)

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It affects Tinycontrol LAN Controller v and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Tinycontrol LAN Controller v

Exploited in the last 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.

CVSS: 9.9 CRITICAL (v4.0, CNA)CVSS: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): CWE-260
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tinycontrol Tinycontrol LAN Controller v tinycontrol:lan_controller_v (from the name)	through 1.58a; HW 3.8	CNA record
Tinycontrol LK tinycontrol:lk (from the name)	through 1.58a; HW 3.8	CNA record

References

References

https://www.exploit-db.com/exploits/51731	exploit
https://www.tinycontrol.pl	product
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5786.php	vendor-advisory
https://www.vulncheck.com/advisories/tinycontrol-lan-controller-v3-lk3-unauthenticated-configuration-backup-disclosure	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.