CVE-2021-33044
Dahua IP Camera Authentication Bypass Vulnerability
- Published
- Sep 15, 2021
- Updated
- Jan 12, 2026
- Assigning CNA
- dahua
- Evidence observed
- Aug 21, 2024
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
http/cves/2021/CVE-2021-33044.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: status,word($.matchers[*].type)
- CVE-2021-33044Exploit
Exploit for Dahua IPC/VTH/VTO devices that bypasses identity authentication by sending crafted malicious packets, allowing unauthorized access.
Responsible use
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