How severe is CVE-2022-35866?

CVE-2022-35866 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-35866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-35866?

CVE-2022-35866 affects Vinchin Vinchin Backup And Recovery. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-35866?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-35866 published?

CVE-2022-35866 was published on 2022-08-03 and last updated on 2026-06-17.

CVE-2022-35866

CVE-2022-35866 is a critical-severity vulnerability in Vinchin Vinchin Backup And Recovery with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Vinchin Vinchin Backup And Recovery
Published: 2022-08-03
Last modified: 2026-06-17

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.

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 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-35866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-35866?: CVE-2022-35866 affects Vinchin Vinchin Backup And Recovery. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-35866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-35866 published?: CVE-2022-35866 was published on 2022-08-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vinchin:vinchin_backup_and_recovery:6.5.0.17561:*:*:*:*:*:*:*

More vulnerabilities in Vinchin Vinchin Backup And Recovery

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