EUVD-2026-39114
GHSA-685c-hvrm-mjvc
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from Vendor (zdi) · only source for this CVE.
CVSS VectorVendor: zdi
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
1DescriptionCVE.org
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.
AnalysisAI
Unauthenticated information disclosure in ATEN Unizon allows remote attackers to read arbitrary files from affected installations by abusing a path-traversal weakness in the writeFileToHttpServletResponse method. Because the underlying service runs with SYSTEM privileges, an attacker can exfiltrate sensitive files including configuration, credentials, and OS-level data. …
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Recommended ActionAI
Within 24 hours: Inventory all ATEN Unizon deployments; document internet exposure and network location; enable audit logging for file access patterns. …
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Authenticated remote code execution in ATEN Unizon arises from a directory traversal flaw in the ImportDeviceList method
Authenticated remote code execution in ATEN Unizon arises from a directory traversal flaw in the restoreDB method, where
Authenticated remote code execution in ATEN Unizon stems from a broken cryptographic signature check in the updateWar me
Arbitrary file deletion via directory traversal in ATEN Unizon's uploadSSL method allows authenticated remote attackers
Arbitrary file deletion in ATEN Unizon exposes all installations to destructive denial-of-service attacks via a path tra
Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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