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Vulnerability Details CVE-2026-9774

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.012
EPSS Ranking 64.3%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2026-9774
  • Aten » Unizon » Version: 2.4.233
    cpe:2.3:a:aten:unizon:2.4.233
  • Aten » Unizon » Version: 2.5.242
    cpe:2.3:a:aten:unizon:2.5.242
  • Aten » Unizon » Version: 2.5.243
    cpe:2.3:a:aten:unizon:2.5.243
  • Aten » Unizon » Version: 2.6.253
    cpe:2.3:a:aten:unizon:2.6.253
  • Aten » Unizon » Version: 2.7.262
    cpe:2.3:a:aten:unizon:2.7.262
  • Aten » Unizon » Version: 2.7.263
    cpe:2.3:a:aten:unizon:2.7.263


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