FKIE_CVE-2026-66154

Vulnerability from fkie_nvd - Published: 2026-08-11 21:17 - Updated: 2026-08-28 18:58
Severity
8.3 (High) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes.
References
PSIRT@sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "platforms": [
            "Linux"
          ],
          "product": "GMS",
          "vendor": "SonicWall",
          "versions": [
            {
              "status": "affected",
              "version": "9.5.1 and earlier versions"
            }
          ]
        }
      ],
      "source": "PSIRT@sonicwall.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An insufficient certificate validation in a privileged communication workflow, was identified in a GMS application 9.5.1 (Build 9510.1044) and earlier versions which, under a successful MitM attack and controlled network conditions, could permit unauthorized changes."
    }
  ],
  "id": "CVE-2026-66154",
  "lastModified": "2026-08-28T18:58:27.140",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 6.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-66154",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-12T04:00:37.248025Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-11T21:17:49.600",
  "references": [
    {
      "source": "PSIRT@sonicwall.com",
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011"
    }
  ],
  "sourceIdentifier": "PSIRT@sonicwall.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "PSIRT@sonicwall.com",
      "type": "Secondary"
    }
  ]
}



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