CVE-2026-43681 (GCVE-0-2026-43681)

Vulnerability from cvelistv5 – Published: 2026-07-27 20:13 – Updated: 2026-07-27 20:13
VLAI
Summary
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
No CVSS data available.
CWE
  • A local user may be able to read kernel memory
Assigner
References
Impacted products
Vendor Product Version
Apple macOS Affected: 0 , < 14.8.8 (custom)
Affected: 0 , < 15.7.8 (custom)
Affected: 0 , < 26.6 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.8.8",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "15.7.8",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.6",
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              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "A local user may be able to read kernel memory",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-27T20:13:55.298Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/128067"
        },
        {
          "url": "https://support.apple.com/en-us/128071"
        },
        {
          "url": "https://support.apple.com/en-us/128072"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2026-43681",
    "datePublished": "2026-07-27T20:13:55.298Z",
    "dateReserved": "2026-05-01T22:46:21.641Z",
    "dateUpdated": "2026-07-27T20:13:55.298Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43681\",\"sourceIdentifier\":\"product-security@apple.com\",\"published\":\"2026-07-27T21:16:52.920\",\"lastModified\":\"2026-07-27T21:16:52.920\",\"vulnStatus\":\"Received\",\"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.\"}],\"affected\":[{\"source\":\"product-security@apple.com\",\"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\":{},\"references\":[{\"url\":\"https://support.apple.com/en-us/128067\",\"source\":\"product-security@apple.com\"},{\"url\":\"https://support.apple.com/en-us/128071\",\"source\":\"product-security@apple.com\"},{\"url\":\"https://support.apple.com/en-us/128072\",\"source\":\"product-security@apple.com\"}]}}"
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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