CVE-2021-33046

Name: CVE-2021-33046
Creator: NVD / NIST
Published: 2022-01-13T21:15:07.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2021-33046 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Some Dahua products have access control vulnerability in the password reset process. Attackers can exploit this vulnerability through specific deployments to reset device passwords.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

Some Dahua products have access control vulnerability in the password reset process. Attackers can exploit this vulnerability through specific deployments to reset device passwords.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.30%

66.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Dahuasecurity	Ipc-Hx1xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Ipc-Hx2xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Ipc-Hx3xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Ipc-Hx5\(4\)\(3\)Xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Ipc-Hx5xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd1a1 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd22 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd49 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd50 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd52c Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Sd6al Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Bf1241 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Bf2221 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Bf5x01 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Pt8x21x Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Sd2221 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Tpc-Sd8x21 Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Nvr1xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Nvr2xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Nvr4xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Nvr5xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Xvr4xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Xvr5xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Xvr7xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Hcvr7xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Hcvr8xxx Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Vtox20xf Firmware	>= 2017-7, <= 2021-7
Dahuasecurity	Asc2204c Firmware	>= 2017-7, <= 2021-7

References

https://support.dahuatech.com/networkSecurity/securityDetails?id=95Vendor Advisory
https://www.dahuasecurity.com/support/cybersecurity/details/957Not Applicable
https://www.dahuasecurity.com/support/cybersecurity/details/987Vendor Advisory
https://support.dahuatech.com/networkSecurity/securityDetails?id=95Vendor Advisory
https://www.dahuasecurity.com/support/cybersecurity/details/957Not Applicable
https://www.dahuasecurity.com/support/cybersecurity/details/987Vendor Advisory

Timeline

Published: Jan 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33046?

Some Dahua products have access control vulnerability in the password reset process. Attackers can exploit this vulnerability through specific deployments to reset device passwords.

How severe is CVE-2021-33046?

CVE-2021-33046 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33046?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33046?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST