Path Traversal in QTS 5.2.6.3195 (QNAP) admin reads arbitrary files
CVE-2025-47211 Published on October 3, 2025
QTS, QuTS hero
A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator 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 versions:
QTS 5.2.6.3195 build 20250715 and later
QuTS hero h5.2.6.3195 build 20250715 and later
Weakness Type
What is a Directory traversal Vulnerability?
The software 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 software 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.
CVE-2025-47211 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2025-47211
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Affected Versions
QNAP Systems Inc. QTS:- Version 5.2.x and below 5.2.6.3195 build 20250715 is affected.
- Version h5.2.x and below h5.2.6.3195 build 20250715 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.