{
  "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-2023-53840",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53840",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T01:29:56.848Z",
    "updatedAt": "2026-05-11T19:52:32.046Z",
    "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: early: xhci-dbc: Fix a potential out-of-bound memory access",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: early: xhci-dbc: Fix a potential out-of-bound memory access\n\nIf xdbc_bulk_write() fails, the values in 'buf' can be anything. So the\nstring is not guaranteed to be NULL terminated when xdbc_trace() is called.\n\nReserve an extra byte, which will be zeroed automatically because 'buf' is\na static variable, in order to avoid troubles, should it happen.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0"
            },
            {
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "351c8d8650d1ccc006255fa01f98b6c6496a02e5"
            },
            {
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "df7c8aba7309f4dc55df94e06b67f576c0f52406"
            },
            {
              "version": "aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a4a97ab3db5c081eb6e7dba91306adefb461e0bd"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.12"
            },
            {
              "version": "5.15.99",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}