CVE-2026-9775
MediumCVSS 6.5Exploitation Probability (EPSS)
Elevated risk64th percentile — higher than 64% of all known CVEs
Summary
A vulnerability in the uploadSSL method of ATEN Unizon allows remote authenticated attackers to delete arbitrary files. The issue stems from missing validation of a user-supplied path before using it in file operations.
Risk Assessment
An attacker can delete critical system files, leading to denial-of-service or system instability.
Recommendation
Apply the update provided by ATEN for the affected Unizon version immediately. Until then, restrict access to the management interface to trusted IP addresses only.
Original NVD description (English source)
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.