CVE-2023-53739

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.63% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.6% of scored records. A rank, not a probability.

NVD base score

9.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-12-09 20:49Z10 MO AGO

Last updated

2026-07-28 01:47Z3 MO AGO

Reserved

2025-12-07

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

• CWE-260Password in Configuration FileBase

Data version

5.2

Document digest

4abcb599f1774f43f43f0f683909db49880fa944b434d8be6051e35519b46a21

• www.exploit-db.comExploitDB-51731https://www.exploit-db.com/exploits/51731exploit
• www.tinycontrol.plTinycontrol Product Homepagehttps://www.tinycontrol.plproduct
• www.zeroscience.mkZero Science Lab Advisory IDhttps://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5786.phpvendor-advisory
• www.vulncheck.comVulnCheck Advisory: Tinycontrol LAN Controller v3 LK3 1.58a Unauthenticated Configuration Backup Disclosurehttps://www.vulncheck.com/advisories/tinycontrol-lan-controller-v3-lk3-unauthenticated-configuration-backup-disclosurethird-party-advisory