CVE-2025-47205

MEDIUM
2026-02-11 [email protected]
4.9
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 11, 2026 - 13:15 nvd
MEDIUM 4.9

Description

A NULL pointer dereference 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 launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later

Analysis

A NULL pointer dereference 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 launch a denial-of-service (DoS) attack. [CVSS 4.9 MEDIUM]

Technical Context

Classified as CWE-476 (NULL Pointer Dereference). Affects Qts. A NULL pointer dereference 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 launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following versions:

QTS 5.2.8.3332 build 20251128 and later

QuTS hero h5.2.8.3321 build 20251117 and later

Affected Products

Vendor: Qnap. Product: Qts. Versions: up to 5.2.0.2737.

Remediation

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +24
POC: 0

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CVE-2025-47205 vulnerability details – vuln.today

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