Out-of-bounds Read in Synology File Station 5 before 5.5.6.5068
CVE-2025-54169 Published on February 11, 2026
File Station 5
An out-of-bounds read vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data.
We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5068 and later
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2025-54169
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Affected Versions
QNAP Systems Inc. File Station 5:- Version 5.5.x and below 5.5.6.5068 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.