CVE-2026-65400

{
  "id": "CVE-2026-65400",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-06T22:18:14.533",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de autenticación con una gestión de estado mejorada. Este problema se ha corregido en macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1. Un atacante en la red podría autenticarse en Compartir Pantalla sin credenciales válidas."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "14.8.9",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "15.7.9",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "26.6.1",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "26.7",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "27",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-14T00:00:00+00:00",
          "id": "CVE-2026-65400",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "cisaExploitAdd": "2026-08-18",
  "cisaActionDue": "2026-08-21",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "Apple macOS Improper Authentication Vulnerability",
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "14.0",
              "versionEndExcluding": "14.8.9",
              "matchCriteriaId": "343D2ED2-0928-434D-9D9E-968A6365DDFE"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "15.0",
              "versionEndExcluding": "15.7.9",
              "matchCriteriaId": "E0FAFB32-637E-4BE3-8A5D-ABB145B1E28B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "26.0",
              "versionEndExcluding": "26.6.1",
              "matchCriteriaId": "31BB841D-2EFD-42A5-9387-685A27D3094E"
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  ],
  "references": [
    {
      "url": "https://support.apple.com/en-us/148170",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/148171",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
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    },
    {
      "url": "https://support.apple.com/en-us/148172",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/149035",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/149042",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://seclists.org/fulldisclosure/2026/Aug/36",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "http://seclists.org/fulldisclosure/2026/Aug/37",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://advisories.ncsc.nl/2026/ncsc-2026-0280.html",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65400",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ]
    }
  ]
}