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High 8.7Published Dec 9, 2025

CVE-2021-47709COMMAX Smart Home Ruvie CCTV Bridge DVR Service Config Write / DoS

Updated under an hour ago ()

Does this affect you?

It affects COMMAX Co., Ltd. Smart Home Ruvie CCTV Bridge DVR Service. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-306
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
Apr 7, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
COMMAX Co., Ltd. Smart Home Ruvie CCTV Bridge DVR Service
commax:smart_home_ruvie_cctv_bridge_dvr_service (from the name)
all versions
CNA record

References

References

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.

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