{"id":"CVE-2026-41541","aliases":["EUVD-2026-101978","GHSA-wfqp-r282-w463"],"status":"published","title":"Symlink creation in qsyncsrv.cgi","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.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.7 and later\nQsync Central 5.1.0.3 and later\nQsync Central 5.2.0.5 and later\nQsync Central 5.3.0.2 and later","severity":{"version":"4.0","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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00378,"percentile":0.32011,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-61"],"published":"2026-10-15T09:30:51Z","modified":"2026-10-15T16:32:39Z","products":[{"vendor":"qnap systems inc.","product":"qsync central"}],"references":[{"url":"https://www.qnap.com/en/app-release-notes?keyword=Qsync%20\u0026app=QsyncServer\u0026product-line=nas","tags":["release-notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41541"},{"url":"https://github.com/advisories/GHSA-wfqp-r282-w463"}],"sources":{"cve":[{"id":"CVE-2026-41541","title":"Symlink creation in qsyncsrv.cgi","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.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.7 and later\nQsync Central 5.1.0.3 and later\nQsync Central 5.2.0.5 and later\nQsync Central 5.3.0.2 and later","status":"published","published":"2026-10-15T09:30:51.471Z","modified":"2026-10-15T13:45:21.273Z","cvss":[{"version":"4.0","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","level":"medium","assessor":"cna"}],"cwes":["CWE-61"],"updated_at":"2026-11-02T13:41:08.498858Z"}],"euvd":[{"id":"EUVD-2026-101978","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.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.7 and later\nQsync Central 5.1.0.3 and later\nQsync Central 5.2.0.5 and later\nQsync Central 5.3.0.2 and later","status":"published","published":"2026-10-15T09:30:51Z","modified":"2026-10-15T13:45:21Z","cvss":[{"version":"4.0","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","level":"medium"}],"updated_at":"2026-11-02T17:00:14.584665Z"}],"ghsa":[{"id":"GHSA-wfqp-r282-w463","title":"An unix symbolic link (symlink) following vulnerability has been reported to affect Qsync Central...","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.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.7 and later\nQsync Central 5.1.0.3 and later\nQsync Central 5.2.0.5 and later\nQsync Central 5.3.0.2 and later","status":"published","published":"2026-10-15T12:31:01Z","modified":"2026-10-15T12:31:09Z","cvss":[{"version":"4.0","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/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","level":"medium"}],"cwes":["CWE-61"],"updated_at":"2026-11-02T15:13:35.825754Z"}],"nvd":[{"id":"CVE-2026-41541","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.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.7 and later\nQsync Central 5.1.0.3 and later\nQsync Central 5.2.0.5 and later\nQsync Central 5.3.0.2 and later","status":"published","published":"2026-10-15T10:17:14.327Z","modified":"2026-10-15T16:32:39.893Z","cvss":[{"version":"4.0","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/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-61"],"updated_at":"2026-11-02T14:12:59.328869Z"}]}}