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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.aten.com/global/en/supportcenter/info/security-advisory/27/	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-26-378/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:*

History

25 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de eliminación arbitraria de archivos por salto de directorio en updateLicense de ATEN Unizon. Esta vulnerabilidad permite a atacantes remotos eliminar archivos arbitrarios en instalaciones afectadas de ATEN Unizon. Se requiere autenticación para explotar esta vulnerabilidad. La falla específica existe dentro del método updateLicense. El problema se debe a la falta de validación adecuada de una ruta proporcionada por el usuario antes de usarla en operaciones de archivo. Un atacante puede aprovechar esta vulnerabilidad para eliminar archivos o crear una condición de denegación de servicio en el sistema. Fue ZDI-CAN-28502.

Information

Published : 2026-06-24 22:16

Updated : 2026-10-25 23:10

NVD link : CVE-2026-9774

Mitre link : CVE-2026-9774

CVE.ORG link : CVE-2026-9774

JSON object : View

Products Affected

aten

unizon

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2026-9774", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9774", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-25T12:54:33.810688Z"}}], "cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.2, "exploitabilityScore": 1.2}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.2}]}, "affected": [{"source": "zdi-disclosures@trendmicro.com", "affectedData": [{"vendor": "ATEN", "product": "Unizon", "versions": [{"status": "affected", "version": "2.7.262.002"}], "defaultStatus": "unknown"}]}], "published": "2026-06-24T22:16:50.030", "references": [{"url": "https://www.aten.com/global/en/supportcenter/info/security-advisory/27/", "tags": ["Vendor Advisory"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-378/", "tags": ["Third Party Advisory"], "source": "zdi-disclosures@trendmicro.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "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.\n\nThe 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."}, {"lang": "es", "value": "Vulnerabilidad de eliminaci\u00f3n arbitraria de archivos por salto de directorio en updateLicense de ATEN Unizon. Esta vulnerabilidad permite a atacantes remotos eliminar archivos arbitrarios en instalaciones afectadas de ATEN Unizon. Se requiere autenticaci\u00f3n para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica existe dentro del m\u00e9todo updateLicense. El problema se debe a la falta de validaci\u00f3n adecuada de una ruta proporcionada por el usuario antes de usarla en operaciones de archivo. Un atacante puede aprovechar esta vulnerabilidad para eliminar archivos o crear una condici\u00f3n de denegaci\u00f3n de servicio en el sistema. Fue ZDI-CAN-28502."}], "lastModified": "2026-10-25T23:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "100AF252-A730-46A9-ADA3-A5DCF3C0C5EF", "versionEndExcluding": "2.7.264"}], "operator": "OR"}]}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}