CVE-2021-47709

COMMAX Smart Home System - DoS

Title source: llm

Description

COMMAX Smart Home System allows an unauthenticated attacker to change configuration and cause denial-of-service through the setconf endpoint. Attackers can trigger a denial-of-service scenario by sending a malformed request to the setconf endpoint.

Exploits (1)

exploitdb WORKING POC

by LiquidWorm · textwebappshardware

https://www.exploit-db.com/exploits/50209

View Code ZIP pw:eip

References (4)

[Various Sources] https://www.commax.com

[Exploit, Third Party Advisory] https://www.exploit-db.com/exploits/50209

[Third Party Advisory] https://www.vulncheck.com/advisories/commax-smart-home-ruvie-cctv-bridge-dvr-service-config-write-dos

[Third Party Advisory] https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5666.php

Scores

EPSS 0.0009

EPSS Percentile 26.1%

Classification

CWE

CWE-306

Status draft

Timeline

Published Dec 09, 2025

Tracked Since Feb 18, 2026