CVE-2025-66278
Analyzed Analyzed - Analysis Complete
Path Traversal in File Station 5 Allows Unauthorized File Access

Publication date: 2026-02-11

Last updated on: 2026-02-12

Assigner: QNAP Systems, Inc.

Description
A path traversal vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5190 and later
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Meta Information
Published
2026-02-11
Last Modified
2026-02-12
Generated
2026-06-16
AI Q&A
2026-02-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-66278
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
qnap file_station From 5.5.6.4691 (inc) to 5.5.6.5190 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

This vulnerability is a path traversal issue affecting File Station 5. It allows a remote attacker who has obtained a user account to exploit the vulnerability and read the contents of files or system data that they should not normally have access to.

Impact Analysis

If exploited, this vulnerability can allow an attacker with a user account to access unexpected files or sensitive system data, potentially leading to unauthorized disclosure of information.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, ensure that your File Station 5 software is updated to version 5.5.6.5190 or later, where the issue has been fixed.

Additionally, restrict remote access to user accounts that could be exploited and monitor for any unauthorized access attempts.

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