CVE-2026-26239

File Station 5

State: Published
Severity: 6.3 Medium
Published: Jun 10, 2026
Updated: Jun 17, 2026
Reserved: Feb 12, 2026

Description

A buffer overflow vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.

We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5208 and later

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U	qnap

Weaknesses

CWE-121

Affected Products

Product	Versions
File Station 5QNAP Systems Inc.	5.5.0 to before 5.5.6.5208Affected

References

https://www.qnap.com/en/security-advisory/qsa-26-10

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