CVE-2025-62855

Local administrator file disclosure

Published Feb 11, 2026 · Updated Feb 11, 2026

Path traversal in QNAP File Station 5 5.5.x allows local users with an administrator account to read unexpected files or system data. QNAP has not disclosed the affected request handler, filesystem operation, or how supplied path data escapes its intended directory. Exploitation requires local access and an administrator account; the reported consequence is unauthorized file or system-data disclosure.

CVSS severity4.4
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

Path traversal in QNAP File Station 5 5.5.x allows local users with an administrator account to read unexpected files or system data. QNAP has not disclosed the affected request handler, filesystem operation, or how supplied path data escapes its intended directory. Exploitation requires local access and an administrator account; the reported consequence is unauthorized file or system-data disclosure.

The record

CVE
CVE-2025-62855
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Linn Products Limited
Product
File Station 5
Classifications
CWE-22, T1005
Attack vector
local
Privileges
admin

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 <5.5.6.5190

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Linn Products Limited · File Station 5version=5.5.x <5.5.6.5190

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
1.3QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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