{
  "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-2026-63958",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-63958",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T14:55:48.835Z",
    "updatedAt": "2026-07-20T06:41:38.075Z",
    "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": "usb: typec: ucsi: validate connector number in ucsi_connector_change()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: validate connector number in ucsi_connector_change()\n\nThe connector number in a UCSI CCI notification is a 7-bit field\nsupplied by the PPM.  ucsi_connector_change() uses it to index the\nucsi->connector[] array without checking it against the number of\nconnectors the PPM reported at init time, so a buggy or malicious PPM\n(EC firmware, or an I2C-attached UCSI controller on the ccg / stm32g0 /\nglink transports) can drive schedule_work() on memory past the end of\nthe array.\n\nReject connector numbers that are zero or exceed cap.num_connectors\nbefore dereferencing the array.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cea949203faef9cb783adc7b978cce056271e057"
            },
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "156b6f0aec6108909b0c4aedc78865b12766b347"
            },
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd24d92af4ae021b6209f28e9a57e1bf2260d4fd"
            },
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0edd1e21587b0483c7ceb993b9fb9668bbef7433"
            },
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5af2719b460ab904c504fc069d1dd2a3aa2b22b0"
            },
            {
              "version": "c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "288a81a8507052bcfbf884d39a463c44c42c5fd9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.13"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}