# CVE-2024-53691

## Summary

- **CVE ID:** CVE-2024-53691
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-59
- **Published:** Dec 6, 2024
- **Last Modified:** Mar 13, 2026

## Description

A link following vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained user access to traverse the file system to unintended locations.

We have already fixed the vulnerability in the following versions:
QTS 5.1.8.2823 build 20240712 and later
QTS 5.2.0.2802 build 20240620 and later
QuTS hero h5.1.8.2823 build 20240712 and later
QuTS hero h5.2.0.2802 build 20240620 and later

## Affected Products

- QNAP Systems Inc. — QTS (5.1.x)
- QNAP Systems Inc. — QTS (5.2.x)
- QNAP Systems Inc. — QuTS hero (h5.1.x)
- QNAP Systems Inc. — QuTS hero (h5.2.x)

## References

- [CNA](https://www.qnap.com/en/security-advisory/qsa-24-28)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 20.11%
- **EPSS Percentile:** 97.3

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._