10

CVE-2021-33044

Warnung
Medienbericht
Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Dahuasecurity ≫ Ipc-hum7xxx Firmware Version < 2.820.0000000.5.r.210705
   Dahuasecurity ≫ Ipc-hum7xxx Version -
Dahuasecurity ≫ Ipc-hx3xxx Firmware Version < 2.800.0000000.29.r.210630
   Dahuasecurity ≫ Ipc-hx3xxx Version -
Dahuasecurity ≫ Ipc-hx5xxx Firmware Version < 2.820.0000000.18.r.210705
   Dahuasecurity ≫ Ipc-hx5xxx Version -
Dahuasecurity ≫ Sd1a1 Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd1a1 Version -
Dahuasecurity ≫ Sd22 Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd22 Version -
Dahuasecurity ≫ Sd49 Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd49 Version -
Dahuasecurity ≫ Sd50 Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd50 Version -
Dahuasecurity ≫ Sd52c Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd52c Version -
Dahuasecurity ≫ Sd6al Firmware Version < 2.812.0000007.0.r.210706
   Dahuasecurity ≫ Sd6al Version -
Dahuasecurity ≫ Tpc-bf1241 Firmware Version < 2.630.0000000.6.r.210707
   Dahuasecurity ≫ Tpc-bf1241 Version -
Dahuasecurity ≫ Tpc-bf2221 Firmware Version < 2.630.0000000.10.r.210707
   Dahuasecurity ≫ Tpc-bf2221 Version -
Dahuasecurity ≫ Tpc-bf5x01 Firmware Version < 2.630.0000000.12.r.210707
   Dahuasecurity ≫ Tpc-bf5x01 Version -
Dahuasecurity ≫ Tpc-pt8x21b Firmware Version < 2.630.0000000.10.r.210701
   Dahuasecurity ≫ Tpc-pt8x21b Version -
Dahuasecurity ≫ Tpc-sd2221 Firmware Version <= 2.630.0000000.7.r.210707
   Dahuasecurity ≫ Tpc-sd2221 Version -
Dahuasecurity ≫ Tpc-sd8x21 Firmware Version < 2.630.0000000.9.r.210706
   Dahuasecurity ≫ Tpc-sd8x21 Version -
Dahuasecurity ≫ Vto-65xxx Firmware Version < 4.300.0000004.0.r.210715
   Dahuasecurity ≫ Vto-65xxx Version -
Dahuasecurity ≫ Vto-75x95x Firmware Version < 4.300.0000003.0.r.210714
   Dahuasecurity ≫ Vto-75x95x Version -
Dahuasecurity ≫ Vth-542xh Firmware Version < 4.500.0000002.0.r.210715
   Dahuasecurity ≫ Vth-542xh Version -
Dahuasecurity ≫ Tpc-bf5x21 Firmware Version < 2.630.0000000.8.r.210630
   Dahuasecurity ≫ Tpc-bf5x21 Version -

21.08.2024: CISA Known Exploited Vulnerabilities (KEV) Catalog

Dahua IP Camera Authentication Bypass Vulnerability

Schwachstelle

Dahua IP cameras and related products contain an authentication bypass vulnerability when the NetKeyboard type argument is specified by the client during authentication.

Beschreibung

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

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 99.87% 1
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 10 10 10
AV:N/AC:L/Au:N/C:C/I:C/A:C
CISA-ADP 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
15.09.2026 14:25
Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
19.08.2026 20:19
Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
19.08.2026 15:49
http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html
Third Party Advisory
Exploit
VDB Entry
http://seclists.org/fulldisclosure/2021/Oct/13
Third Party Advisory
Exploit
Mailing List
https://www.dahuasecurity.com/support/cybersecurity/details/957
Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33044
US Government Resource