CVE-2026-43681

Full vulnerability record from the local CVENow database.
Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A local user may be able to read kernel memory.
Severity
HIGH
CVSS score
7.1 (v3.1)
Vulnerability status
Analyzed
Source identifier
[email protected]
Published
2026-07-27 21:16:52.920000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
  "id": "CVE-2026-43681",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-27T21:16:52.920",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A local user may be able to read kernel memory."
    },
    {
      "lang": "es",
      "value": "Un desbordamiento de búfer se abordó con una comprobación de límites mejorada. Este problema se corrigió en macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Un usuario local podría leer memoria del kernel."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "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",
              "lessThan": "26.6",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-07-28T13:52:49.945328Z",
          "id": "CVE-2026-43681",
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              "exploitation": "none"
            },
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              "automatable": "no"
            },
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              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
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      "type": "Secondary",
      "description": [
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          "value": "CWE-120"
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  "configurations": [
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  "references": [
    {
      "url": "https://support.apple.com/en-us/128067",
      "source": "[email protected]",
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}