{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-64126",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64126",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T15:40:23.276Z",
    "updatedAt": "2026-10-19T20:28:13.544Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Bluetooth: MGMT: validate Add Extended Advertising Data length",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: validate Add Extended Advertising Data length\n\nMGMT_OP_ADD_EXT_ADV_DATA is registered as a variable-length command,\nwith MGMT_ADD_EXT_ADV_DATA_SIZE as the fixed header size.  The handler\nthen uses cp->adv_data_len and cp->scan_rsp_len to validate and copy\ncp->data, but it never checks that those bytes are part of the mgmt\ncommand payload.\n\nA short command can therefore make add_ext_adv_data() pass an\nout-of-bounds pointer into tlv_data_is_valid().  If the bytes beyond\nthe command buffer are addressable, they can also be copied into the\nadvertising instance as scan response data, where the caller can read\nthem back via MGMT_OP_GET_ADV_INSTANCE.  The trigger requires\nCAP_NET_ADMIN in the initial user namespace; KASAN reports an 8-byte\nslab-out-of-bounds read.\n\nReject commands whose length does not match the fixed header plus both\nadvertising data lengths before parsing cp->data.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d5104390b445e7bd664ad583837e4c04d892c9d"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "14b01b9cba04e6ce82825f68fc4c4322fa4ffa43"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a143ce77a5292f2c9285137433d879ce71d190a7"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6c75a3fad226ccbd8ef9110dee87c92c299f2ab"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f1febe93ef075314615f970a87681d9ab86691d1"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0bc1a5a69f541859293d79db72bd7854ac48df51"
            },
            {
              "version": "12410572833a283ce92fcf9679ca8a2f372097ee",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d3f7d17960ed50df3a6709c5158caff989c8c905"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.142",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.92",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.34",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}