{
  "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-2023-54299",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54299",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-30T12:23:35.146Z",
    "updatedAt": "2026-05-11T19:59:16.752Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "usb: typec: bus: verify partner exists in typec_altmode_attention",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: bus: verify partner exists in typec_altmode_attention\n\nSome usb hubs will negotiate DisplayPort Alt mode with the device\nbut will then negotiate a data role swap after entering the alt\nmode. The data role swap causes the device to unregister all alt\nmodes, however the usb hub will still send Attention messages\neven after failing to reregister the Alt Mode. type_altmode_attention\ncurrently does not verify whether or not a device's altmode partner\nexists, which results in a NULL pointer error when dereferencing\nthe typec_altmode and typec_altmode_ops belonging to the altmode\npartner.\n\nVerify the presence of a device's altmode partner before sending\nthe Attention message to the Alt Mode driver.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f71716772b88cbe0e1788f6a38d7871aff2120b"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "38e1f2ee82bacbbfded8f1c06794a443d038d054"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0ad6bad31da692f8d7acacab07eabe7586239ae0"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d3b5fe47938e9c451466845304a2bd74e967a80"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d49547950bf7f3480d6ca05fe055978e5f0d9e5b"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1101867a1711c27d8bbe0e83136bec47f8c1ca2a"
            },
            {
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f23643306430f86e2f413ee2b986e0773e79da31"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "5.4.257",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.195",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.132",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.5.*"
            },
            {
              "version": "6.6",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}