ByteOS Network

NVD Vulnerability Details :

CVE-2026-26241

Analyzed

Source-security@qnapsecurity.com.tw

Published At-10 Jun, 2026 | 05:16

Updated At-12 Jun, 2026 | 12:51

A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	5.3	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary	3.1	9.1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Type: Secondary

Version: 4.0

Base score: 5.3

Base severity: MEDIUM

Vector:

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Type: Primary

Version: 3.1

Base score: 9.1

Base severity: CRITICAL

Vector:

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

CPE Matches

QNAP Systems, Inc.

>>file_station>>Versions from 5.5.6.4691(inclusive) to 5.5.6.5243(exclusive)

cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-121	Primary	security@qnapsecurity.com.tw

CWE ID: CWE-121

Type: Primary

Source: security@qnapsecurity.com.tw

References

Hyperlink	Source	Resource
https://www.qnap.com/en/security-advisory/qsa-26-27	security@qnapsecurity.com.tw	Broken Link

Hyperlink: https://www.qnap.com/en/security-advisory/qsa-26-27

Source: security@qnapsecurity.com.tw

Resource:

Broken Link

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History