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CVE-2021-33044

The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity...

Basic Information

CVE State
PUBLISHED
Reserved Date
May 17, 2021
Published Date
September 15, 2021
Last Updated
September 05, 2024
Vendor
n/a
Product
Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices
Description
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.
Tags
cisa nuclei_scanner fancy_bear

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

10.0

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2025-05-05 00:00:00 UTC) Source
Seen in APT Campaigns
Yes (added 2022-02-01 00:00:00 UTC) (Fancy Bear) Source

References

https://www.dahuasecurity.com/support/cybersecurity/details/957 http://seclists.org/fulldisclosure/2021/Oct/13 http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html

Known Exploited Vulnerability Information

Source Added Date
CISA 2024-08-21 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-33044.yaml 2025-04-26 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Used in Fancy Bear APT Campaign

  • Added to KEVIntel

  • Detected by Nuclei