CVE-2025-54169Network attack vector

Authenticated secret-data disclosure via out-of-bounds read

Published Feb 11, 2026 · Updated Feb 11, 2026

Out-of-bounds read in QNAP File Station 5 5.5.x before 5.5.6.5068 allows remote authenticated users to obtain secret data. QNAP has not disclosed the affected function, request field, or missing bounds check that causes the application to read beyond its intended buffer. A valid user account and network access to File Station are required; the published impact is limited to disclosure, with no integrity or availability effect.

CVSS severity6.5
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in QNAP File Station 5 5.5.x before 5.5.6.5068 allows remote authenticated users to obtain secret data. QNAP has not disclosed the affected function, request field, or missing bounds check that causes the application to read beyond its intended buffer. A valid user account and network access to File Station are required; the published impact is limited to disclosure, with no integrity or availability effect.

The record

CVE
CVE-2025-54169
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Linn Products Limited
Product
File Station 5
Classifications
CWE-125, CAPEC-540
Attack vector
network
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

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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=5.5.x <5.5.6.5068

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linn Products Limited · File Station 5version=5.5.x <5.5.6.5068

Published CVSS scores

4.9QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CAPEC-540Overread Buffers

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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