Detections
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Qnap QTS and QuTS hero Improper Handling of URL Encoding (CVE-2024-48866)

low Tenable OT Security Plugin ID 504849

Synopsis

The remote OT asset is affected by a vulnerability.

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

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://www.qnap.com/en/security-advisory/qsa-24-49

Plugin Details

Severity: Low

ID: 504849

File Name: tenable_ot_qnap_CVE-2024-48866.nasl

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 12/11/2025

Updated: 2/24/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2024-48866

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Low

Base Score: 2.3

Threat Score: 0.6

Threat Vector: CVSS:4.0/E:U

Vector: 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

Vulnerability Information

CPE: cpe:/o:qnap:quts_hero, cpe:/o:qnap:qts

Required KB Items: Tenable.ot/Qnap

Exploit Ease: No known exploits are available

Patch Publication Date: 12/6/2024

Vulnerability Publication Date: 12/6/2024

Reference Information

CVE: CVE-2024-48866

CWE: 177