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HIGH · 8.1

CVE-2026-26239

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 ...

Vulnerability 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

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
QnapFile Station>= 5.5.6.4691, < 5.5.6.5208

Related Weaknesses (CWE)

CWE-121

References

FAQ

What is CVE-2026-26239?

CVE-2026-26239 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...

How severe is CVE-2026-26239?

CVE-2026-26239 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-26239?

Check the references section above for vendor advisories and patch information. Affected products include: Qnap File Station.