Path Traversal in Aten Unizon
CVE-2026-9775
ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability. The specific flaw exists within the uploadSSL method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files or create a denial-of-service condition on the system. Was ZDI-CAN-28503.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Aten Unizon — versions 2.7.262.002
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-379/ (x_research-advisory, Third Party Advisory)
- www.aten.com/global/en/supportcenter/info/security-advisory/28/ (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-9775?
- CVE-2026-9775 is a medium-severity vulnerability in Aten Unizon, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-06-24.
- How severe is CVE-2026-9775?
- Medium severity. CVSS v3 base score is 6.5 out of 10.