CVE-2022-35866: Vinchin Backup And Recovery

Critical severity, CVSS 9.8. EPSS: 4.5% chance of exploitation in the next 30 days.

This vulnerability allows remote attackers to bypass authentication on affected installations of Vinchin Backup and Recovery 6.5.0.17561. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the MySQL server. The server uses a hard-coded password for the administrator user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-17139.

Affected products

• Vinchin Vinchin Backup And Recovery: version 6.5.0.17561 only

Published 2022-08-03. Last modified 2026-06-17.