Vulnerability in Some Dahua Ip Camera, Video Intercom, Nvr, Xvr Devices
CVE-2021-33045
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.
EPSS: 0.942 (99.9th percentile) — read the EPSS interpretation.
Affected products
- N/a Some Dahua Ip Camera, Video Intercom, Nvr, Xvr Devices — versions 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.
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- www.dahuasecurity.com/support/cybersecurity/details/957 (x_refsource_MISC)
- 20211005 [Update]: Dahua Authentication bypass (CVE-2021-33044, CVE-2021-33045) (mailing-list, x_refsource_FULLDISC)
- packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-33045?
- CVE-2021-33045 is a vulnerability in Some Dahua Ip Camera, Video Intercom, Nvr, Xvr Devices. Published 2021-09-15.
- Is CVE-2021-33045 known to be exploited?
- Yes. CVE-2021-33045 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-08-21), indicating it is being actively exploited. 39 public proof-of-concept repositories are indexed.