Detections
Analytics

Qnap QTS and QuTS hero Allocation of Resources Without Limits or Throttling (CVE-2025-47208)

high Tenable OT Security Plugin ID 505028

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 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-25-50

Plugin Details

Severity: High

ID: 505028

File Name: tenable_ot_qnap_CVE-2025-47208.nasl

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 1/20/2026

Updated: 2/4/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-47208

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:qnap:quts_hero:h5.2, cpe:/o:qnap:quts_hero:h5.3, cpe:/o:qnap:qts:5.2

Required KB Items: Tenable.ot/Qnap

Exploit Ease: No known exploits are available

Patch Publication Date: 1/2/2026

Vulnerability Publication Date: 1/2/2026

Reference Information

CVE: CVE-2025-47208

CWE: 770