Cyber Resilience

CVE-2023-34551

High

Published: 01 August 2023

Published
01 August 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0364 88.1th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-34551 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Ezviz Cs-C6N-B0-1G2Wf Firmware. Its CVSS base score is 8.0 (High).

Operationally, ranked in the top 11.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

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).

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

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

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References