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CVE-2026-9774

Full vulnerability record from the local CVENow database.

Description

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.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-06-24 22:16:50.030000
Last modified
2026-10-25 23:10:00.167000
View original CVE JSON
{
  "id": "CVE-2026-9774",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-24T22:16:50.030",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "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 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.\n\nLa 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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "ATEN",
          "product": "Unizon",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "2.7.262.002",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "type": "Primary",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.2,
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    "cvssMetricV30": [
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-06-25T12:54:33.810688Z",
          "id": "CVE-2026-9774",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
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  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "configurations": [
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      "nodes": [
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          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "criteria": "cpe:2.3:a:aten:unizon:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://www.aten.com/global/en/supportcenter/info/security-advisory/27/",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-378/",
      "source": "[email protected]",
      "tags": [
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}