Ezviz · Ezviz Cs-C3N · CVE-2023-48121
**Name of the Vulnerable Software and Affected Versions**
Ezviz CS-C6N-xxx versions prior to v5.3.x build 20230401
Ezviz CS-CV310-xxx versions prior to v5.3.x build 20230401
Ezviz CS-C6CN-xxx versions prior to v5.3.x build 20230401
Ezviz CS-C3N-xxx versions prior to v5.3.x build 20230401
Hikvision products (affected versions not specified)
**Description**
An authentication bypass vulnerability in the Direct Connection Module or Hik-Connect Module allows remote attackers to obtain sensitive information or consume services by sending crafted messages to the affected devices.
**Recommendations**
For Ezviz CS-C6N-xxx versions prior to v5.3.x build 20230401, update to v5.3.x build 20230401 or later.
For Ezviz CS-CV310-xxx versions prior to v5.3.x build 20230401, update to v5.3.x build 20230401 or later.
For Ezviz CS-C6CN-xxx versions prior to v5.3.x build 20230401, update to v5.3.x build 20230401 or later.
For Ezviz CS-C3N-xxx versions prior to v5.3.x build 20230401, update to v5.3.x build 20230401 or later.
For Hikvision products, at the moment, there is no information about a newer version that contains a fix for this vulnerability.