Qnap QTS and QuTS hero Allocation of Resources Without Limits or Throttling (CVE-2025-57705)

medium Tenable OT Security Plugin ID 505027

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 an administrator 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 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 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: Medium

ID: 505027

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 1/20/2026

Updated: 1/20/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v3

Risk Factor: Medium

Base Score: 4.9

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

Vulnerability Information

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

Required KB Items: Tenable.ot/Qnap

Patch Publication Date: 1/2/2026

Vulnerability Publication Date: 1/2/2026

Reference Information

CVE: CVE-2025-57705

CWE: 770