{
  "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-2023-36833",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-36833",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2023-07-14T16:56:37.708Z",
    "updatedAt": "2024-10-22T14:31:21.501Z",
    "importedAt": "2026-10-24T01:56:53.804Z",
    "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": "Junos OS Evolved: PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202: The aftman-bt process will crash in a MoFRR scenario after multiple link flaps",
      "summary": "A Use After Free vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS Evolved on PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202 allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).\n\nThe process 'aftman-bt' will crash after multiple flaps on a multicast-only fast reroute (MoFRR) enabled interface. This will cause the respective FPC to stop forwarding traffic and it needs to be rebooted to restore the service.\n\nAn indication that the system experienced this issue is the following log message:\n\n  <date> <hostname> evo-aftmand-bt[<pid>]: [Error] jexpr_fdb: sanity check failed, ... , app_name L3 Mcast Routes\n\n\n\n\nThis issue affects Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10004, PTX10008, PTX10016 with LC1201/1202:\n21.2 version 21.2R1-EVO and later versions;\n21.3 version 21.3R1-EVO and later versions;\n21.4 versions prior to 21.4R3-S3-EVO;\n22.1 version 22.1R1-EVO and later versions;\n22.2 versions prior to 22.2R3-S2-EVO;\n22.3 versions prior to 22.3R3-EVO;\n22.4 versions prior to 22.4R1-S2-EVO, 22.4R2-EVO.\n\n\n\n",
      "affected": [
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS Evolved",
          "platforms": [
            "PTX10001-36MR",
            "PTX10004",
            "PTX10008",
            "PTX10016"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "21.2",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.2*",
              "changes": [
                {
                  "at": "21.2R1-EVO",
                  "status": "affected"
                }
              ]
            },
            {
              "version": "21.3",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.3*",
              "changes": [
                {
                  "at": "21.3R1-EVO",
                  "status": "affected"
                }
              ]
            },
            {
              "version": "21.4",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.4R3-S3-EVO"
            },
            {
              "version": "22.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "22.1*",
              "changes": [
                {
                  "at": "22.1R1-EVO",
                  "status": "affected"
                }
              ]
            },
            {
              "version": "22.2",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "22.2R3-S2-EVO"
            },
            {
              "version": "22.3",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "22.3R3-EVO"
            },
            {
              "version": "22.4",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "22.4R1-S2-EVO, 22.4R2-EVO"
            }
          ]
        }
      ]
    }
  }
}