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CVE-2021-33045

Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
EPSS Score54.8410%
EPSS Percentile86.85th
Published2021年9月15日
Last Modified2026年1月13日

Vulnerability 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.

Affected Platforms (CPE)

💻
Dahuasecurity

Ipc Hum7xxx Firmware

< 2.820.0000000.5.r.210705
💻
Dahuasecurity

Ipc Hx3xxx Firmware

< 2.800.0000000.29.r.210630
💻
Dahuasecurity

Ipc Hx5xxx Firmware

< 2.820.0000000.5.r.210705
💻
Dahuasecurity

Nvr 1xxx Firmware

< 4.001.0000005.1.r.210709
💻
Dahuasecurity

Nvr 2xxx Firmware

< 4.001.0000000.1.r.210710
💻
Dahuasecurity

Nvr 4xxx Firmware

< 4.001.0000005.1.r.210713
💻
Dahuasecurity

Nvr 5xxx Firmware

< 4.001.0000000.0.r.210710
💻
Dahuasecurity

Nvr 6xx Firmware

< 4.001.0000001.1.r.210716
💻
Dahuasecurity

Vth 542xh Firmware

< 4.500.0000002.0.r.210715
💻
Dahuasecurity

Vto 65xxx Firmware

< 4.300.0000004.0.r.210715
💻
Dahuasecurity

Vto 75x95x Firmware

< 4.300.0000003.0.r.210714
💻
Dahuasecurity

Xvr 4x04 Firmware

All versions
💻
Dahuasecurity

Xvr 4x08 Firmware

< 4.001.0000001.1.r.210709
💻
Dahuasecurity

Xvr 4x04 Firmware

< 4.001.0000001.1.r.210709
💻
Dahuasecurity

Xvr 5x04 Firmware

< 4.001.0000003.1.r.210710
💻
Dahuasecurity

Xvr 5x08 Firmware

< 4.001.0000003.1.r.210710
💻
Dahuasecurity

Xvr 5x16 Firmware

< 4.001.0000003.1.r.210710
💻
Dahuasecurity

Xvr 7x16 Firmware

< 4.001.0000003.1.r.210710
💻
Dahuasecurity

Xvr 7x32 Firmware

< 4.001.0000003.1.r.210710

References & Advisories

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