{
  "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-2022-22227",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-22227",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2022-10-18T02:46:28.960Z",
    "updatedAt": "2025-05-12T14:29:55.117Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "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: ACX7000 Series: Specific IPv6 transit traffic gets exceptioned to the routing-engine which causes increased CPU utilization",
      "summary": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On receipt of specific IPv6 transit traffic, Junos OS Evolved on ACX7100-48L, ACX7100-32C and ACX7509 sends this traffic to the Routing Engine (RE) instead of forwarding it, leading to increased CPU utilization of the RE and a partial DoS. This issue only affects systems configured with IPv6. This issue does not affect ACX7024 which is supported from 22.3R1-EVO onwards where the fix has already been incorporated as indicated in the solution section. This issue affects Juniper Networks Junos OS Evolved on ACX7100-48L, ACX7100-32C, ACX7509: 21.1-EVO versions prior to 21.1R3-S2-EVO; 21.2-EVO versions prior to 21.2R3-S2-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R1-S1-EVO, 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.1R1-EVO.",
      "affected": [
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS Evolved",
          "platforms": [
            "ACX7100-48L, ACX7100-32C, ACX7509"
          ],
          "versions": [
            {
              "version": "unspecified",
              "status": "unaffected",
              "versionType": "custom",
              "lessThan": "21.1R1-EVO"
            },
            {
              "version": "21.1-EVO",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.1R3-S2-EVO"
            },
            {
              "version": "21.2-EVO",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.2R3-S2-EVO"
            },
            {
              "version": "21.3-EVO",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.3R3-EVO"
            },
            {
              "version": "21.4-EVO",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "21.4R1-S1-EVO, 21.4R2-EVO"
            }
          ]
        }
      ]
    }
  }
}