CVE-2022-35866: This vulnerability allows remote attackers to bypass authentication on affected installations of Vinchin Backup and Recovery 6.5.0.17561. Authenticati...

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.05%

85.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Vinchin	Vinchin Backup And Recovery	6.5.0.17561

References

Timeline

Published: Aug 3, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35866?

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.

How severe is CVE-2022-35866?

CVE-2022-35866 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.05% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35866?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.