CVE-2025-47214Network attack vector

Administrator-authenticated denial of service

Published Oct 3, 2025 · Updated Oct 3, 2025

NULL pointer dereference in QNAP QTS 5.2.x before 5.2.6.3195 build 20250715 allows remote authenticated users to interrupt service. QNAP has not disclosed the affected component, the dereferenced pointer, or the request that supplies the invalid value. Exploitation requires an administrator account over the network and is reported to cause denial of service, with no confidentiality or integrity impact.

CVSS severity5.1
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in QNAP QTS 5.2.x before 5.2.6.3195 build 20250715 allows remote authenticated users to interrupt service. QNAP has not disclosed the affected component, the dereferenced pointer, or the request that supplies the invalid value. Exploitation requires an administrator account over the network and is reported to cause denial of service, with no confidentiality or integrity impact.

The record

CVE
CVE-2025-47214
Published
Oct 3, 2025
Updated
Oct 3, 2025
Vendor
Linn Products Limited
Product
QTS
Classifications
CWE-476, CAPEC-129, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2.x <5.2.6.3195 build 20250715

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Linn Products Limited · QTSversion=5.2.x <5.2.6.3195 build 20250715

Published CVSS scores

4.9NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.1QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
CAPEC-129Pointer Manipulation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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