CVE-2026-41541

Symlink creation in qsyncsrv.cgi

State: Published
Severity: 5.3 Medium
Published: Oct 15, 2026
Updated: Oct 15, 2026
Reserved: Apr 21, 2026

Description

An unix symbolic link (symlink) following vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system.

We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.7 and later Qsync Central 5.1.0.3 and later Qsync Central 5.2.0.5 and later Qsync Central 5.3.0.2 and later

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N	qnap

Weaknesses

CWE-61

Affected Products

Product	Versions
Qsync CentralQNAP Systems Inc.	5.0.x to before 5.0.0.7Affected 5.1.x to before 5.1.0.3Affected 5.2.x to before 5.2.0.5Affected 5.3.x to before 5.3.0.2Affected

References

https://www.qnap.com/en/app-release-notes?keyword=Qsync%20&app=QsyncServer&product-line=nasrelease-notes

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