CVE-2026-4793

Full vulnerability record from the local CVENow database.
Description

An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.
Severity
HIGH
CVSS score
7.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
[email protected]
Published
2026-08-03 07:16:43.453000
Last modified
2026-10-23 22:10:00.160000
View original CVE JSON
{
  "id": "CVE-2026-4793",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-03T07:16:43.453",
  "lastModified": "2026-10-23T22:10:00.160",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de permisos predeterminados incorrectos en Synology Assistant antes de 7.0.7-50095 permite a usuarios locales leer o escribir archivos arbitrarios y realizar una denegación de servicio durante la instalación."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Synology",
          "product": "Synology Assistant",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "*",
              "lessThan": "7.0.7-50095",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "type": "Secondary",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 5.9
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
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          "availabilityImpact": "HIGH"
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    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-03T14:46:03.226652Z",
          "id": "CVE-2026-4793",
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              "exploitation": "none"
            },
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            },
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              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_12",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    }
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}