{
  "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-2025-20209",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-20209",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-03-12T16:13:12.340Z",
    "updatedAt": "2025-03-12T17:51:32.083Z",
    "importedAt": "2026-10-24T01:57:24.991Z",
    "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": "Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability",
      "summary": "A vulnerability in the Internet Key Exchange version 2 (IKEv2) function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any control plane UDP packets. \r\n\r\nThis vulnerability is due to improper handling of malformed IKEv2 packets. An attacker could exploit this vulnerability by sending malformed IKEv2 packets to an affected device. A successful exploit could allow the attacker to prevent the affected device from processing any control plane UDP packets, resulting in a denial of service (DoS) condition.\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco IOS XR Software",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "6.5.3",
              "status": "affected"
            },
            {
              "version": "6.6.1",
              "status": "affected"
            },
            {
              "version": "6.5.2",
              "status": "affected"
            },
            {
              "version": "6.6.2",
              "status": "affected"
            },
            {
              "version": "6.5.1",
              "status": "affected"
            },
            {
              "version": "7.0.1",
              "status": "affected"
            },
            {
              "version": "6.6.25",
              "status": "affected"
            },
            {
              "version": "7.0.0",
              "status": "affected"
            },
            {
              "version": "7.1.1",
              "status": "affected"
            },
            {
              "version": "6.6.3",
              "status": "affected"
            },
            {
              "version": "7.0.2",
              "status": "affected"
            },
            {
              "version": "7.2.0",
              "status": "affected"
            },
            {
              "version": "7.1.2",
              "status": "affected"
            },
            {
              "version": "7.2.1",
              "status": "affected"
            },
            {
              "version": "7.3.1",
              "status": "affected"
            },
            {
              "version": "7.4.1",
              "status": "affected"
            },
            {
              "version": "7.2.2",
              "status": "affected"
            },
            {
              "version": "7.3.2",
              "status": "affected"
            },
            {
              "version": "7.5.1",
              "status": "affected"
            },
            {
              "version": "7.3.27",
              "status": "affected"
            },
            {
              "version": "7.6.1",
              "status": "affected"
            },
            {
              "version": "7.5.2",
              "status": "affected"
            },
            {
              "version": "7.7.1",
              "status": "affected"
            },
            {
              "version": "7.4.2",
              "status": "affected"
            },
            {
              "version": "7.6.2",
              "status": "affected"
            },
            {
              "version": "7.8.1",
              "status": "affected"
            },
            {
              "version": "7.7.2",
              "status": "affected"
            },
            {
              "version": "7.9.1",
              "status": "affected"
            },
            {
              "version": "7.8.2",
              "status": "affected"
            },
            {
              "version": "7.8.22",
              "status": "affected"
            },
            {
              "version": "7.10.1",
              "status": "affected"
            },
            {
              "version": "7.7.21",
              "status": "affected"
            },
            {
              "version": "7.9.2",
              "status": "affected"
            },
            {
              "version": "7.11.1",
              "status": "affected"
            },
            {
              "version": "7.10.2",
              "status": "affected"
            },
            {
              "version": "24.1.1",
              "status": "affected"
            },
            {
              "version": "7.11.2",
              "status": "affected"
            },
            {
              "version": "24.2.1",
              "status": "affected"
            },
            {
              "version": "24.1.2",
              "status": "affected"
            },
            {
              "version": "24.2.11",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}