# CVE-2024-48866

## Summary

- **CVE ID:** CVE-2024-48866
- **Severity:** LOW
- **CVSS Score:** 2.3 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-177
- **Published:** Dec 6, 2024
- **Last Modified:** Mar 13, 2026

## Description

An improper handling of URL encoding (Hex Encoding) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers to run the system into unexpected state.

We have already fixed the vulnerability in the following versions:
QTS 5.1.9.2954 build 20241120 and later
QTS 5.2.2.2950 build 20241114 and later
QuTS hero h5.1.9.2954 build 20241120 and later
QuTS hero h5.2.2.2952 build 20241116 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-24-49)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 36.2

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