{
  "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-2026-90063",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90063",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:05:46.968Z",
    "updatedAt": "2026-10-19T08:57:20.621Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "virtio-net: Ensure that TCP packets don't overflow gso_segs",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: Ensure that TCP packets don't overflow gso_segs\n\nThe user can specify any gso_size in a packet crafted with an AF_PACKET\nPACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the\nsame time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user\ncrafts a packet with gso_size < 8, there is a risk for partial GSO to\noverflow the 16-bit gso_segs field when dividing the SKB length by\ngso_size.\n\nAdjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep\ngso_size of UDP GSO packets, as gso_size=1 is valid and explicitly\ntested at tools/testing/selftests/net/tun.c:649.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d3d111fe809773edbb4ae121e36253b7d683509a"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8f6667a081887c2b59c6f3dd86c1789ada563762"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "339f47ae04dcc6b5a730dd6bc70dddc8937c3260"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29bd12c7c5f9d6cf855b87bace18f71e9607f9e8"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e5ed3b98d1d8d251acfdccfeaa607453ad12954"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75c271c48f483af678e514734e10b2452410e08c"
            },
            {
              "version": "7c6d2ecbda83150b2036a2b36b21381ad4667762",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c27c449d455aafd9018a3cbab150f1c42c87923f"
            },
            {
              "version": "bfbaf151efe491e30697e21c8b7ae1b615480873",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6c83456601e65a6dd371ddf595510183d198e9b1",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "b3ebd9830c6026c98f03f7047c9d608573773f13",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "b96fb681ca789629b8ba3da99ca3b2e6fa807f0a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.14.187",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.131",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.46",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.6.18",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.7"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.7"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}