CVE-2026-9775: medium-severity vulnerability in ATEN Unizon
ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 1.5%
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.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Affected products
ATEN · UnizonRelated CVEs — ATEN Unizon
In the same product, most dangerous first.
CVE-2026-9778HIGHATEN Unizon ImportDeviceList Directory Traversal Remote Code Execution VulnerabilityEPSS 2.2%CVE-2026-9777HIGHATEN Unizon restoreDB Directory Traversal Remote Code Execution VulnerabilityEPSS 2.2%CVE-2026-9776HIGHATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure VulnerabilityEPSS 1.9%CVE-2026-9774MEDIUMATEN Unizon updateLicense Directory Traversal Arbitrary File Deletion VulnerabilityEPSS 1.5%CVE-2026-5057HIGHATEN Unizon RpcProvider Missing Authentication Denial-of-Service VulnerabilityEPSS 0.7%CVE-2026-9779HIGHATEN Unizon doCryptoHugeFileToFile Improper Verification of Cryptographic Signature Remote Code Execution VulnerabilityEPSS 0.7%