CVE-2026-9774
MediumCVSS 6.5Exploitation Probability (EPSS)
Elevated risk64th percentile - higher than 64% of all known CVEs
Summary
The vulnerability in the updateLicense method of ATEN Unizon software allows a remote authenticated attacker to delete arbitrary files on the system. The issue stems from the lack of proper 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 destabilization of the entire system.
Recommendation
Immediately update ATEN Unizon software to the latest version containing a fix for this vulnerability. Until the update is applied, restrict administrative interface access to trusted IP addresses only.
Other vulnerabilities in ATEN Unizon
See all- CVE-2026-5057High
Vulnerability in ATEN Unizon RpcProvider allows a remote attacker to cause a denial-of-service (DoS) without authentication. Lack of authentication before accessing RpcProvider functionality enables system overload.
- CVE-2026-9778High
A directory traversal vulnerability in the ImportDeviceList method of ATEN Unizon allows remote code execution. The issue stems from improper validation of a user-supplied path before using it in file operations. Authentication is required for exploitation.
- CVE-2026-9776High
A Directory Traversal vulnerability in the writeFileToHttpServletResponse method in ATEN Unizon allows remote attackers to disclose sensitive information without authentication. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations.
Original NVD description (English source)
ATEN Unizon updateLicense 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 updateLicense 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-28502.