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.

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Vendors Products
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Ipc-hum7xxx Subscribe
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Sd1a1 Firmware Subscribe
Sd22 Firmware Subscribe
Sd49 Firmware Subscribe
Sd50 Firmware Subscribe
Sd52c Firmware Subscribe
Sd6al Firmware Subscribe
Tpc-bf1241 Subscribe
Tpc-bf1241 Firmware Subscribe
Tpc-bf2221 Subscribe
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Tpc-bf5x01 Subscribe
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Tpc-pt8x21b Subscribe
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Tpc-sd2221 Subscribe
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Tpc-sd8x21 Subscribe
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Vth-542xh Subscribe
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Vto-65xxx Subscribe
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Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 10 Nov 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Dahuasecurity sd49
Dahuasecurity sd49 Firmware
CPEs cpe:2.3:h:dahuasecurity:sd41:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd41_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dahuasecurity:sd49:-:*:*:*:*:*:*:*
cpe:2.3:o:dahuasecurity:sd49_firmware:*:*:*:*:*:*:*:*
Vendors & Products Dahuasecurity sd41
Dahuasecurity sd41 Firmware
Dahuasecurity sd49
Dahuasecurity sd49 Firmware

Wed, 22 Oct 2025 00:30:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Wed, 30 Jul 2025 02:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: dahua

Published:

Updated: 2026-01-12T19:53:16.325Z

Reserved: 2021-05-17T00:00:00.000Z

Link: CVE-2021-33044

cve-icon Vulnrichment

Updated: 2024-08-03T23:42:19.261Z

cve-icon NVD

Status : Analyzed

Published: 2021-09-15T22:15:10.497

Modified: 2026-01-13T22:20:28.687

Link: CVE-2021-33044

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses