CVE-2023-34552
EZVIZ
- Published
- 1 August 2023
- Last modified
- 9 July 2026
- CVSS
- 8.8 v3.1
- Severity
- high
- EPSS
- 0.4% (37th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-787, CWE-121
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.4% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Cs-c6n-a0-1c2wfr-mul | EZVIZ | IP camera | <= 5.3.2 |
| Cs-c6n-b0-1g2wf | EZVIZ | IP camera | 5.3.0, <= 5.3.0 |
| Cs-c6n-r101-1g2wf | EZVIZ | IP camera | <= 5.3.0 |
| Cs-cv248-a0-32wmfr | EZVIZ | IP camera | <= 5.2.3 |
| Cs-cv310-a0-1b2wfr | EZVIZ | IP camera | <= 5.3.0 |
| Cs-cv310-a0-1c2wfr | EZVIZ | IP camera | <= 5.3.2 |
| Cs-cv310-a0-1c2wfr-c | EZVIZ | IP camera | <= 5.3.2 |
| Cs-cv310-a0-3c2wfrl-1080p | EZVIZ | IP camera | <= 5.2.7 |
| LC1C | EZVIZ | unknown | <= 5.3.4 |
References
Vendor advisory and patch
- https://www.ezviz.com/data-security/security-notice/detail/827
- https://www.ezviz.com/data-security/security-notice/detail/827
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.