{
  "schemaVersion": 1,
  "attribution": [
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      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
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    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
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    {
      "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-2025-20189",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-20189",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-07T17:35:47.923Z",
    "updatedAt": "2025-05-07T19:44:12.723Z",
    "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": null,
      "summary": "A vulnerability in the Cisco Express Forwarding functionality of Cisco IOS XE Software for Cisco ASR 903 Aggregation Services Routers with Route Switch Processor 3 (RSP3C) could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper memory management when Cisco IOS XE Software is processing Address Resolution Protocol (ARP) messages. An attacker could exploit this vulnerability by sending crafted ARP messages at a high rate over a period of time to an affected device. A successful exploit could allow the attacker to exhaust system resources, which eventually triggers a reload of the active route switch processor (RSP). If a redundant RSP is not present, the router reloads.",
      "affected": [
        {
          "vendor": "Cisco",
          "product": "Cisco IOS XE Software",
          "versions": [
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              "version": "3.16.0S",
              "status": "affected"
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              "version": "3.16.0cS",
              "status": "affected"
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              "version": "3.16.3S",
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              "version": "3.16.6bS",
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            {
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              "status": "affected"
            },
            {
              "version": "3.16.7bS",
              "status": "affected"
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            {
              "version": "3.16.8S",
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            },
            {
              "version": "3.16.9S",
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            {
              "version": "3.16.10S",
              "status": "affected"
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              "version": "16.1.1",
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              "version": "16.1.2",
              "status": "affected"
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              "status": "affected"
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              "version": "16.2.1",
              "status": "affected"
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              "version": "16.3.1",
              "status": "affected"
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              "status": "affected"
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              "version": "16.3.3",
              "status": "affected"
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              "status": "affected"
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              "status": "affected"
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              "version": "16.3.7",
              "status": "affected"
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              "version": "16.3.9",
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              "version": "16.3.11",
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              "version": "16.4.1",
              "status": "affected"
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              "version": "3.18.4S",
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              "version": "16.8.1a",
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              "version": "16.8.1c",
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            {
              "version": "16.8.1d",
              "status": "affected"
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            {
              "version": "16.8.2",
              "status": "affected"
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              "status": "affected"
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              "version": "17.9.3a",
              "status": "affected"
            },
            {
              "version": "17.9.4",
              "status": "affected"
            },
            {
              "version": "17.9.1y1",
              "status": "affected"
            },
            {
              "version": "17.9.5",
              "status": "affected"
            },
            {
              "version": "17.9.4a",
              "status": "affected"
            },
            {
              "version": "17.9.5a",
              "status": "affected"
            },
            {
              "version": "17.9.5b",
              "status": "affected"
            },
            {
              "version": "17.9.6",
              "status": "affected"
            },
            {
              "version": "17.9.6a",
              "status": "affected"
            },
            {
              "version": "17.9.5e",
              "status": "affected"
            },
            {
              "version": "17.9.5f",
              "status": "affected"
            },
            {
              "version": "17.11.1",
              "status": "affected"
            },
            {
              "version": "17.11.1a",
              "status": "affected"
            },
            {
              "version": "17.12.1",
              "status": "affected"
            },
            {
              "version": "17.12.1w",
              "status": "affected"
            },
            {
              "version": "17.12.1x",
              "status": "affected"
            },
            {
              "version": "17.12.2",
              "status": "affected"
            },
            {
              "version": "17.12.3",
              "status": "affected"
            },
            {
              "version": "17.12.2a",
              "status": "affected"
            },
            {
              "version": "17.12.1y",
              "status": "affected"
            },
            {
              "version": "17.12.1z",
              "status": "affected"
            },
            {
              "version": "17.12.4",
              "status": "affected"
            },
            {
              "version": "17.12.3a",
              "status": "affected"
            },
            {
              "version": "17.12.1z1",
              "status": "affected"
            },
            {
              "version": "17.12.4a",
              "status": "affected"
            },
            {
              "version": "17.12.4b",
              "status": "affected"
            },
            {
              "version": "17.13.1",
              "status": "affected"
            },
            {
              "version": "17.13.1a",
              "status": "affected"
            },
            {
              "version": "17.14.1",
              "status": "affected"
            },
            {
              "version": "17.14.1a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}