CVE-2021-33044: Dahua IP Camera Firmware (Critical, CVSS 9.8)
- CVSS
- 9.8 Critical (v3.1)
- EPSS
- 100% chance of exploitation in the next 30 days (higher than 99.9% of CVEs)
- Exploited in the wild
- Yes, on CISA’s KEV list since Aug 21, 2024
- Public exploit
- Yes, reported in a Nuclei template and 7 GitHub repositories
- Weakness
- CWE-287
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Published
- Sep 15, 2021
- CISA fix-by date
- Sep 11, 2024 (for US federal agencies)
What it is
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
Description from the National Vulnerability Database.
What to do
CISA: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Check whether you run Dahua IP Camera Firmware, then apply the vendor’s fix or mitigation from the advisories below. Because this flaw is exploited or has public exploit code, treat it as urgent and check for signs of compromise, not just the patch level.
Advisories and fixes
ThreatRoundup coverage
Hidden Behind NAT, Still Hijacked: Dahua Cameras Hit in Ukraine
Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.