CVE-2025-66278
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qnap | file_station | From 5.5.6.4691 (inc) to 5.5.6.5190 (exc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
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.