CVE-2023-34552

moderate-risk
Published 2023-08-01

In certain EZVIZ products, two stack based buffer overflows in mulicast_parse_sadp_packet and mulicast_get_pack_type functions of the SADP multicast protocol can allow an unauthenticated 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.

Do I need to act?

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0.77% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
ADJACENT_NETWORK / LOW complexity

Affected Products (9)

Cs-C6N-B0-1G2Wf Firmware
Cs-C6N-R101-1G2Wf Firmware
Cs-Cv310-A0-1B2Wfr Firmware
Cs-Cv310-A0-1C2Wfr-C Firmware
Cs-C6N-A0-1C2Wfr-Mul Firmware
Cs-Cv310-A0-3C2Wfrl-1080P Firmware
Cs-Cv310-A0-1C2Wfr Firmware
Cs-Cv248-A0-32Wmfr Firmware
Lc1C Firmware

Affected Vendors

Ezviz

References (4)

Product http://ezviz.com
Vendor Advisory https://www.ezviz.com/data-security/security-notice/detail/827
Product http://ezviz.com
Vendor Advisory https://www.ezviz.com/data-security/security-notice/detail/827
45
/ 100
moderate-risk
Severity 27/34 · High
Exploitability 3/34 · Minimal
Exposure 15/34 · Moderate