Path traversal in Unizon Service - CVE-2026-9774
Published: June 26, 2026
Vulnerability identifier: #VU135463
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-9774
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ATEN
Affected software:
Unizon Service
Unizon Service
Detailed vulnerability description
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the updateLicense method in the "/rest/system/license" endpoint handler. A remote administrator can send a specially crafted HTTP request and delete arbitrary files on the system.
How to mitigate CVE-2026-9774
Install updates from vendor's website.