CVE-2023-48121
EZVIZ
- Published
- 28 November 2023
- Last modified
- 17 June 2026
- CVSS
- 5.3 v3.1
- Severity
- medium
- EPSS
- 0.8% (55th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-287
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.
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 0.8% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Cs-c3n-a0-3h2wfrl | EZVIZ | IP camera | — |
| Cs-c6cn-a0-3h2wfr | EZVIZ | IP camera | — |
| Cs-c6n-a0-1c2wfr | EZVIZ | IP camera | 5.3.0 |
| Cs-cv310-a0-1c2wfr | EZVIZ | IP camera | <= 5.3.2 |
References
Vendor advisory and patch
- https://www.ezviz.com/data-security/security-notice/detail/911
- https://www.ezviz.com/data-security/security-notice/detail/911
- https://joerngermany.github.io/ezviz_vulnerability/
- https://www.hikvision.com/hk/support/cybersecurity/security-advisory/security-vulnerability-in-some-hikvision-products/
- https://joerngermany.github.io/ezviz_vulnerability/
- https://www.hikvision.com/hk/support/cybersecurity/security-advisory/security-vulnerability-in-some-hikvision-products/
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.