{
  "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-2022-49727",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49727",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:24:38.672Z",
    "updatedAt": "2026-05-11T19:05:40.832Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix signed integer overflow in l2tp_ip6_sendmsg\n\nWhen len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be\noverflow. To fix, we can follow what udpv6 does and subtract the\ntranshdrlen from the max.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2cf73c7cb6125083408d77f43d0e84d86aed0000"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e818d433fc2718fe4da044ffca7431812a7e04e"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6c4e3486d21173d60925ef52e512cae727b43d30"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f42389d270f2304c8855b0b63498a5a4d0c053d"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b8879ca1fd7348b4d5db7db86dcb97f60c73d751"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27a37755ceb401111ded76810359d3adc4b268a1"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "034246122f5c5e2e2a0b9fe04e24517920e9beb1"
            },
            {
              "version": "a32e0eec7042b21ccb52896cf715e3e2641fed93",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f638a84afef3dfe10554c51820c16e39a278c915"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.5"
            },
            {
              "version": "4.9.320",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.285",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.249",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.200",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.124",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.49",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.18.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}