CVE-2021-33045

CRITICAL9.8

CISA KEV

Published 2021-09-15 · Updated 2026-06-17 · Source cybersecurity@dahuatech.com

Summary

CVE-2021-33045 is a critical-severity (CVSS 9.8) vulnerability in Dahua IP Camera Firmware. CISA added it to the Known Exploited Vulnerabilities catalog on August 21, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 11, 2024. CISA does not currently list it as used in ransomware campaigns. Dahua has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 2 known-exploited Dahua vulnerabilities →

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.

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

CWE-287CWE-287

CISA Known-Exploited Vulnerability

Product: Dahua — IP Camera Firmware

Name: Dahua IP Camera Authentication Bypass Vulnerability

Date added: 2024-08-21 · Due: 2024-09-11

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

More exploited Dahua vulnerabilities

Most recently added to CISA KEV

CVE-2021-33044
IP Camera Firmware — Dahua IP Camera Authentication Bypass Vulnerability
added 2024-08-21

View all →

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