{
  "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-2026-45952",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-45952",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-27T12:18:08.442Z",
    "updatedAt": "2026-05-27T12:18:08.442Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "eth: fbnic: Add validation for MTU changes",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: Add validation for MTU changes\n\nIncreasing the MTU beyond the HDS threshold causes the hardware to\nfragment packets across multiple buffers. If a single-buffer XDP program\nis attached, the driver will drop all multi-frag frames. While we can't\nprevent a remote sender from sending non-TCP packets larger than the MTU,\nthis will prevent users from inadvertently breaking new TCP streams.\n\nTraditionally, drivers supported XDP with MTU less than 4Kb\n(packet per page). Fbnic currently prevents attaching XDP when MTU is too high.\nBut it does not prevent increasing MTU after XDP is attached.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1b0a3950dbd4fa278dc33401a4faba2a23307a16",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7eaa006c0444a5d4671be7efe6dbb33ef8b515e"
            },
            {
              "version": "1b0a3950dbd4fa278dc33401a4faba2a23307a16",
              "status": "affected",
              "versionType": "git",
              "lessThan": "03399063aa0c67fd8bdfd69467ddb849bb3b97df"
            },
            {
              "version": "1b0a3950dbd4fa278dc33401a4faba2a23307a16",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ccd8e87748ad083047d6c8544c5809b7f96cc8df"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.18"
            },
            {
              "version": "6.18.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}