CVE-2026-43655

{
  "id": "CVE-2026-43655",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-11T21:19:01.280",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory."
    },
    {
      "lang": "es",
      "value": "Se abordó una lectura fuera de límites con una comprobación de límites mejorada. Este problema está solucionado en iOS 26.5 y iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Una app podría causar una terminación inesperada del sistema o leer memoria del kernel."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.5",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.5",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.5",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.5",
              "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:L/I:L/A:L",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-12T17:25:22.731967Z",
          "id": "CVE-2026-43655",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "26.5",
              "matchCriteriaId": "9D9FC2C4-7A7C-4330-A226-255428A5D18E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "26.5",
              "matchCriteriaId": "0A70A5FD-8891-4C4E-9D35-F217F95027B5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "26.0",
              "versionEndExcluding": "26.5",
              "matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "26.5",
              "matchCriteriaId": "176C47FD-FA25-437B-9061-A81CAA367AEF"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "26.5",
              "matchCriteriaId": "057B244F-5485-4108-8E23-FE15F5256EE7"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.apple.com/en-us/127110",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/127115",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/127118",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/127119",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    }
  ]
}