Vulnerability record

CVE-2021-33044

Dahua IP Camera Authentication Bypass Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run IP Camera Firmware, fix it now.

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

US federal civilian agencies must remediate by Sep 11, 2024.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorSource
IP Camera FirmwareDahuaKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2021-33044 scored CVSS 9.8: Dahua IP Camera Firmware, Dahua IP Camera Authentication Bypass Vulnerability

    CISA lists this as exploited in the wild. Unpatched IP Camera Firmware systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

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Coverage

We have not published a story about this vulnerability yet.

References

  • dahuasecurity.com https://www.dahuasecurity.com/aboutUs/trustedCenter/details/582
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2021-33044
  • packetstormsecurity.com http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html
  • seclists.org http://seclists.org/fulldisclosure/2021/Oct/13
  • dahuasecurity.com https://www.dahuasecurity.com/support/cybersecurity/details/957
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33044