CVE-2026-22899

MEDIUM

Qnap Systems Inc. File Station 5 < 5.5.6.5208 - Denial of Service

Title source: rule

Description

A NULL pointer dereference vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5208 and later

References (1)

Core 1

Core References

https://www.qnap.com/en/security-advisory/qsa-26-19

Scores

CVSS v3 6.5

EPSS 0.0028

EPSS Percentile 19.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (2)

qnap/file_station 5.5.6.4691 - 5.5.6.5208

QNAP Systems Inc./File Station 5 5.5.0 - 5.5.6.5208

Published Jun 10, 2026

Tracked Since Jun 10, 2026