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
- Sep 21, 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
9- CVE-2021-33044Exploit
Exploit for Dahua IPC/VTH/VTO devices that bypasses identity authentication by sending crafted malicious packets, allowing unauthorized access.
PoC exploit for Dahua authentication bypass (CVE-2021-33044). Scans subnets, tests multiple CVEs, and dumps device configs via crafted cookies without valid credentials.
- DahuaLoginBypassExploit
Chrome extension that uses vulnerabilities CVE-2021-33044 and CVE-2021-33045 to log in to Dahua cameras without authentication.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.