2026-07-27 20:14CVE-2026-64766apple
PUBLISHED5.2

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Problem type

  • Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

Affected products

Apple

iOS and iPadOS

< 26.6 - AFFECTED

macOS

< 14.8.8 - AFFECTED

< 15.7.8 - AFFECTED

< 26.6 - AFFECTED

tvOS

< 26.6 - AFFECTED

visionOS

< 26.6 - AFFECTED

watchOS

< 26.6 - AFFECTED

References

GitHub Security Advisories

GHSA-j475-2rj7-69hc

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6...

https://github.com/advisories/GHSA-j475-2rj7-69hc

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-64766
Click to expand
{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-64766",
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "dateUpdated": "2026-07-28T13:47:32.652Z",
    "dateReserved": "2026-07-20T18:10:43.924Z",
    "datePublished": "2026-07-27T20:14:02.814Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple",
        "dateUpdated": "2026-07-27T20:14:02.814Z"
      },
      "descriptions": [
        {
          "lang": "en",
          "value": "An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution."
        }
      ],
      "affected": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "26.6"
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        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "version": "0",
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            },
            {
              "version": "0",
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        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "version": "0",
              "status": "affected",
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              "lessThan": "26.6"
            }
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        },
        {
          "vendor": "Apple",
          "product": "visionOS",
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              "version": "0",
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        {
          "vendor": "Apple",
          "product": "watchOS",
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              "version": "0",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://support.apple.com/en-us/128066"
        },
        {
          "url": "https://support.apple.com/en-us/128067"
        },
        {
          "url": "https://support.apple.com/en-us/128068"
        },
        {
          "url": "https://support.apple.com/en-us/128069"
        },
        {
          "url": "https://support.apple.com/en-us/128070"
        },
        {
          "url": "https://support.apple.com/en-us/128071"
        },
        {
          "url": "https://support.apple.com/en-us/128072"
        }
      ]
    },
    "adp": [
      {
        "providerMetadata": {
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP",
          "dateUpdated": "2026-07-28T13:47:32.652Z"
        },
        "title": "CISA ADP Vulnrichment",
        "problemTypes": [
          {
            "descriptions": [
              {
                "lang": "en",
                "description": "CWE-190 Integer Overflow or Wraparound",
                "cweId": "CWE-190",
                "type": "CWE"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "version": "3.1",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "attackVector": "LOCAL",
              "attackComplexity": "LOW",
              "privilegesRequired": "NONE",
              "userInteraction": "REQUIRED",
              "scope": "UNCHANGED",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH"
            }
          },
          {}
        ]
      }
    ]
  }
}