ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vulnerability_CVE-2026-9776

7.5 / 10

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of ATEN Unizon. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the writeFileToHttpServletResponse 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 disclose information in the context of SYSTEM. Was ZDI-CAN-28505.

Basic Information

ID CVE-2026-9776

Source zdi

Published Jun 24, 2026 at 21:36

Affected Product

Vendor ATEN

Product Unizon

Version 2.7.262.002

Affected Versions ATEN Unizon 2.7.262.002

CWE Classification

CWE-22

References

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    "published": "2026-06-24T21:36:49.727Z",
    "modified": "2026-06-24T21:36:49.727Z",
    "type": "cve",
    "title": "ATEN Unizon writeFileToHttpServletResponse Directory Traversal Information Disclosure Vulnerability",
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    "references": "https://www.zerodayinitiative.com/advisories/ZDI-26-380/\nhttps://www.aten.com/global/en/supportcenter/info/security-advisory/29/",
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