CVE-2026-41541

Symlink creation in qsyncsrv.cgi

Published Oct 15, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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

Remediation

Vendor Solution

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

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Qnap Systems
Qnap Systems qsync Central
Vendors & Products Qnap Systems
Qnap Systems qsync Central
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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
Title Symlink creation in qsyncsrv.cgi
Weaknesses CWE-61
References
Metrics cvssV4_0

{'score': 5.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
qnap
Published
Updated
Oct 15, 2026, 1:45 PM
Reserved
Apr 21, 2026, 3:07 AM
Status
Awaiting Analysis
Published
Oct 15, 2026, 10:17 AM
Modified
Oct 15, 2026, 4:32 PM