CVE-2021-33045
Dahua IP Camera Authentication Bypass Vulnerability
Dahua IP Camera FirmwareIndustrial & IoT
CVSS
9.8CriticalExploit odds (EPSS)99.6%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Public exploit code and templates 1
- Scanner templateDahua IPC/VTH/VTO - Authentication BypassNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Dahua IP cameras and related products contain an authentication bypass vulnerability when the loopback device is specified by the client during authentication.
Text from CVE List
Affected versions 1
- Some Dahua IP Camera, Video Intercom, NVR, XVR devicesaffected: Dahua IP Camera devices IPC-HX3XXX, IPC-HX5XXX, and IPC-HUM7XXX Buildtime before May, 2020, Video Intercom devices VTO75X95X, VTO65XXX, and VTH542XH, NVR devices NVR1XXX, NVR2XXX, NVR5XXX, and NVR6XX, XVR devices XVR4xxx, XVR5xxx, and XVR7xxx Buildtime before December, 2019.CVE List