CVE-2023-34551

Name: CVE-2023-34551
Creator: NVD / NIST
Published: 2023-08-01T18:15:09.997+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-34551 is a high-severity vulnerability rated 8/10 on the CVSS scale. In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of the EZVIZ SDK command server can allow an authenticated attacker present on the same local network as the camera to achieve remote code execution. This affects CS-C6N-B0-1G2WF Firmware versions before V5.3.0 build 230215 and CS-C6N-R101-1G2WF Firmware versions before V5.3.0 build 230215 and CS-CV310-A0-1B2WFR Firmware versions before V5.3.0 build 230221 and CS-CV310-A0-1C2WFR-C Firmware versions before V5.3.2 build 230221 and CS-C6N-A0-1C2WFR-MUL Firmware versions before V5.3.2 build 230218 and CS-CV310-A0-3C2WFRL-1080p Firmware versions before V5.2.7 build 230302 and CS-CV310-A0-1C2WFR Wifi IP66 2.8mm 1080p Firmware versions before V5.3.2 build 230214 and CS-CV248-A0-32WMFR Firmware versions before V5.2.3 build 230217 and EZVIZ LC1C Firmware versions before V5.3.4 build 230214. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of the EZVIZ SDK command server can allow an authenticated attacker present on the same local network as the camera to achieve remote code execution. This affects CS-C6N-B0-1G2WF Firmware versions before V5.3.0 build 230215 and CS-C6N-R101-1G2WF Firmware versions before V5.3.0 build 230215 and CS-CV310-A0-1B2WFR Firmware versions before V5.3.0 build 230221 and CS-CV310-A0-1C2WFR-C Firmware versions before V5.3.2 build 230221 and CS-C6N-A0-1C2WFR-MUL Firmware versions before V5.3.2 build 230218 and CS-CV310-A0-3C2WFRL-1080p Firmware versions before V5.2.7 build 230302 and CS-CV310-A0-1C2WFR Wifi IP66 2.8mm 1080p Firmware versions before V5.3.2 build 230214 and CS-CV248-A0-32WMFR Firmware versions before V5.2.3 build 230217 and EZVIZ LC1C Firmware versions before V5.3.4 build 230214. The impact is: execute arbitrary code (remote).

Metrics

CVSS 3.1

8/10

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

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Ezviz	Cs-C6n-B0-1g2wf Firmware	<= 5.3.0
Ezviz	Cs-C6n-R101-1g2wf Firmware	<= 5.3.0
Ezviz	Cs-Cv310-A0-1b2wfr Firmware	<= 5.3.0
Ezviz	Cs-Cv310-A0-1c2wfr-C Firmware	<= 5.3.2
Ezviz	Cs-C6n-A0-1c2wfr-Mul Firmware	<= 5.3.2
Ezviz	Cs-Cv310-A0-3c2wfrl-1080p Firmware	<= 5.2.7
Ezviz	Cs-Cv310-A0-1c2wfr Firmware	<= 5.3.2
Ezviz	Cs-Cv248-A0-32wmfr Firmware	<= 5.2.3
Ezviz	Lc1c Firmware	<= 5.3.4

References

http://ezviz.comProduct
https://www.ezviz.com/data-security/security-notice/detail/827Vendor Advisory
http://ezviz.comProduct
https://www.ezviz.com/data-security/security-notice/detail/827Vendor Advisory

Timeline

Published: Aug 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34551?

How severe is CVE-2023-34551?

CVE-2023-34551 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34551?

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-2023-34551?

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

Scan your code now

Source: NVD / NIST