CVE-2026-39877

{
  "id": "CVE-2026-39877",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-27T21:16:51.640",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to disclose kernel memory."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de corrupción de memoria con una gestión de memoria mejorada. Este problema está solucionado en macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. Una app podría divulgar memoria del kernel."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "18.7.10",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "26.5",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "14.8.8",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "15.7.8",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
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              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.5",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "visionOS",
          "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": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-28T14:21:02.752284Z",
          "id": "CVE-2026-39877",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
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          "negate": false,
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  "references": [
    {
      "url": "https://support.apple.com/en-us/127110",
      "source": "[email protected]"
    },
    {
      "url": "https://support.apple.com/en-us/127115",
      "source": "[email protected]"
    },
    {
      "url": "https://support.apple.com/en-us/127118",
      "source": "[email protected]"
    },
    {
      "url": "https://support.apple.com/en-us/127119",
      "source": "[email protected]"
    },
    {
      "url": "https://support.apple.com/en-us/127120",
      "source": "[email protected]"
    },
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      "url": "https://support.apple.com/en-us/128071",
      "source": "[email protected]",
      "tags": [
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      "url": "https://support.apple.com/en-us/128072",
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      "source": "[email protected]"
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}