Medium severity · published Feb 11, 2026
CVE-2025-54155
File Station 5
4.9
CVSS
0.5%
EPSS
No
On KEV
Description
An allocation of resources without limits or throttling vulnerability has been reported to affect File Station 5. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource.
We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5018 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FS
File Station 5 · QNAP Systems Inc.
5.5.x before 5.5.6.5018 · source: vendor
FS
File Station · Qnap
5.5.6.4691 before 5.5.6.5190 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-54155
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-54155
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-26-03
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