{
  "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-2026-72483",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72483",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:57:20.914Z",
    "updatedAt": "2026-08-17T05:44:46.745Z",
    "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: host: max3421: Fix shift-out-of-bounds in max3421_hub_control()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: host: max3421: Fix shift-out-of-bounds in max3421_hub_control()\n\nThe `max3421_hub_control()` function handles USB hub class requests\nto the virtual root hub. In the `default` branches of both the\n`ClearPortFeature` and `SetPortFeature` switch statements, it modifies\n`max3421_hcd->port_status` by left shifting 1 by the request's `value`\nparameter. However, it does not validate whether this shift will exceed\nthe width of `port_status`.\n\nSo if a malicious userspace task with access to the root hub via\n/dev/bus/usb/.../001 issues a USBDEVFS_CONTROL ioctl with `wValue`\ngreater than or equal to 32, the left shift operation invokes\nshift-out-of-bounds undefined behavior. This results in arbitrary\nbit corruption of `port_status`, including the normally-immutable\nchange bits, which can bypass internal state checks and confuse the\nhub status.\n\nFix this by rejecting requests whose `value` exceeds the shift width\nbefore performing the shift.\n\nThis issue was found using a KLEE-based symbolic execution tool for\nkernel drivers that I'm currently developing.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e5fa9d8f40746ec3447335c9642c03410f5fd3af"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "08b1d4cab0230697bc74c63fc4e40170a7559c54"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3be5f24e8270ba53b3c814d13689bb8644c86237"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d512bdefd241b98f4d7bcb5bab5614a86411fad4"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "00dd025324b56d39d37e57a08f473dab3a660f30"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02d03c61e8a7b016956acb48e8a2512d16d87517"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4da073d57176d8e1c2bca34febfbc81d2560c1a5"
            },
            {
              "version": "2d53139f31626bad6f8983d8e519ddde2cbba921",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cff06b03b530ae1fe8a13e93a7848f2130e00fb4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.16"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}