High severityNVD Advisory· Published Dec 9, 2025· Updated Apr 15, 2026

CVE-2021-47709

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.commax.comnvd
www.exploit-db.com/exploits/50209nvd
www.vulncheck.com/advisories/commax-smart-home-ruvie-cctv-bridge-dvr-service-config-write-dosnvd
www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5666.phpnvd

News mentions

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