{
  "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-2026-23448",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23448",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-03T15:15:31.488Z",
    "updatedAt": "2026-09-14T11:58:15.009Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "net: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check\n\ncdc_ncm_rx_verify_ndp16() validates that the NDP header and its DPE\nentries fit within the skb. The first check correctly accounts for\nndpoffset:\n\n  if ((ndpoffset + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len)\n\nbut the second check omits it:\n\n  if ((sizeof(struct usb_cdc_ncm_ndp16) +\n       ret * (sizeof(struct usb_cdc_ncm_dpe16))) > skb_in->len)\n\nThis validates the DPE array size against the total skb length as if\nthe NDP were at offset 0, rather than at ndpoffset. When the NDP is\nplaced near the end of the NTB (large wNdpIndex), the DPE entries can\nextend past the skb data buffer even though the check passes.\ncdc_ncm_rx_fixup() then reads out-of-bounds memory when iterating\nthe DPE array.\n\nAdd ndpoffset to the nframes bounds check and use struct_size_t() to\nexpress the NDP-plus-DPE-array size more clearly.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "63c35b8fce77a7892e8fa06c540d4943145506eb"
            },
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f1c7701d3ac91b62d672c13690cf295821f0d5c3"
            },
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "789204f980730258c983102c027c375238009c80"
            },
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "403f94ddcb36c552fbef51dea735b131e3dcde8b"
            },
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dce9dda0e3707e887977db44407989e9ead26611"
            },
            {
              "version": "ff06ab13a4ccae4acb44a2d4e3ece367b616ab50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2aa8a4fa8d5b7d0e1ebcec100e1a4d80a1f4b21a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.8"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.20",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}