---
id: CVE-2025-62850
title: >-
  A NULL pointer dereference vulnerability has been reported to affect QTS, QVP,
  QuTS cloud and QuTS hero
summary: >-
  A NULL pointer dereference vulnerability has been reported to affect QTS, QVP,
  QuTS cloud and QuTS hero. If a remote attacker gains an administrator account,
  they can then exploit the vulnerability to launch a denial-of-service (DoS)
  att…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-476
vendor: qnap
product: quts_hero
affected:
  - 'quts_hero >= h5.2.0.2737, < h5.2.9.3410'
  - 'quts_hero >= h5.3.0.3115, < h5.3.4.3500'
  - 'quts_hero >= h6.0.0.3324, < h6.0.0.3459'
patched:
  - quts_hero h6.0.0.3459
published: '2026-06-10'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T08:16:35.690'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62850'
references:
  - url: 'https://www.qnap.com/en/release-notes/qts/5.2.9.3410/20260214'
    label: security@qnapsecurity.com.tw
  - url: 'https://www.qnap.com/en/release-notes/quts_hero/h5.2.9.3410/20260214'
    label: security@qnapsecurity.com.tw
  - url: 'https://www.qnap.com/en/release-notes/quts_hero/h5.3.4.3500/20260520'
    label: security@qnapsecurity.com.tw
  - url: 'https://www.qnap.com/en/release-notes/quts_hero/h6.0.0.3459/20260409'
    label: security@qnapsecurity.com.tw
  - url: 'https://www.qnap.com/en/release-notes/qutscloud/c5.2.9.3468/20260413'
    label: security@qnapsecurity.com.tw
  - url: 'https://www.qnap.com/en/release-notes/qvp/2.7.5.1691/20260818'
    label: security@qnapsecurity.com.tw
tags:
  - nvd
  - cve.org
  - score-dispute
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-10T15:57:33.151942Z'
scores:
  nvd: 7.2
  cna: 1.2
epss: 0.00331
epssPercentile: 0.24628
ingestedAt: '2026-10-15T07:57:27.838Z'
---

## Overview

A NULL pointer dereference vulnerability has been reported to affect QTS, QVP, QuTS cloud and QuTS hero. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version:
QTS 5.2.9.3410 build 20260214 and later
QVP 2.7.4 and later
QuTS cloud c5.2.9.3468 build 20260413 and later
QuTS hero h5.2.9.3410 build 20260214 and later
QuTS hero h5.3.4.3500 build 20260520 and later
QuTS hero h6.0.0.3459 build 20260409 and later

## Affected

- `quts_hero >= h5.2.0.2737, < h5.2.9.3410`
- `quts_hero >= h5.3.0.3115, < h5.3.4.3500`
- `quts_hero >= h6.0.0.3324, < h6.0.0.3459`

## Remediation

Upgrade past the affected range:

- `quts_hero h6.0.0.3459`