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CVE-2021-33044

Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
EPSS Score81.1750%
EPSS Percentile90.83th
PublishedSep 15, 2021
Last ModifiedJan 13, 2026

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)

πŸ’»
Dahuasecurity

Ipc Hum7xxx Firmware

< 2.820.0000000.5.r.210705
πŸ’»
Dahuasecurity

Ipc Hx3xxx Firmware

< 2.800.0000000.29.r.210630
πŸ’»
Dahuasecurity

Ipc Hx5xxx Firmware

< 2.820.0000000.18.r.210705
πŸ’»
Dahuasecurity

Sd1a1 Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Sd22 Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Sd49 Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Sd50 Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Sd52c Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Sd6al Firmware

< 2.812.0000007.0.r.210706
πŸ’»
Dahuasecurity

Tpc Bf1241 Firmware

< 2.630.0000000.6.r.210707
πŸ’»
Dahuasecurity

Tpc Bf2221 Firmware

< 2.630.0000000.10.r.210707
πŸ’»
Dahuasecurity

Tpc Bf5x01 Firmware

< 2.630.0000000.12.r.210707
πŸ’»
Dahuasecurity

Tpc Pt8x21b Firmware

< 2.630.0000000.10.r.210701
πŸ’»
Dahuasecurity

Tpc Sd2221 Firmware

<= 2.630.0000000.7.r.210707
πŸ’»
Dahuasecurity

Tpc Sd8x21 Firmware

< 2.630.0000000.9.r.210706
πŸ’»
Dahuasecurity

Vto 65xxx Firmware

< 4.300.0000004.0.r.210715
πŸ’»
Dahuasecurity

Vto 75x95x Firmware

< 4.300.0000003.0.r.210714
πŸ’»
Dahuasecurity

Vth 542xh Firmware

< 4.500.0000002.0.r.210715
πŸ’»
Dahuasecurity

Tpc Bf5x21 Firmware

< 2.630.0000000.8.r.210630

References & Advisories

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