CVE-2025-54151

Authenticated service interruption

Published Feb 11, 2026 · Updated Feb 11, 2026

Uncontrolled resource consumption in QNAP Qsync Central before 5.0.0.4 allows local users with an account to interrupt service. QNAP has not disclosed the affected component, attacker-controlled input, consumed resource, or whether exhaustion causes a hang or process crash. Exploitation requires a Qsync Central user account and affects availability only; no data disclosure or modification is reported.

CVSS severity7.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Uncontrolled resource consumption in QNAP Qsync Central before 5.0.0.4 allows local users with an account to interrupt service. QNAP has not disclosed the affected component, attacker-controlled input, consumed resource, or whether exhaustion causes a hang or process crash. Exploitation requires a Qsync Central user account and affects availability only; no data disclosure or modification is reported.

The record

CVE
CVE-2025-54151
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Linn Products Limited
Product
Qsync Central
Classifications
CWE-770, CWE-789, CWE-400, CAPEC-130, CAPEC-227, CAPEC-119, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.0.x.x <5.0.0.4 ( 2026/01/20 )

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Linn Products Limited · Qsync Centralversion=5.0.x.x <5.0.0.4 ( 2026/01/20 )

Published CVSS scores

7.1QNAP Systems, Inc.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
4.9QNAP Systems, Inc.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/E:U
5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-789Memory Allocation with Excessive Size Value
CWE-400Uncontrolled Resource Consumption
CAPEC-130Excessive Allocation
CAPEC-227Sustained Client Engagement
CAPEC-119DEPRECATED: Deplete Resources
T1499.004Application 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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo