{
  "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-2026-73450",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-73450",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T02:32:45.999Z",
    "updatedAt": "2026-09-17T17:41:33.537Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "Security Advisory 0161",
      "summary": "On affected platforms running Arista EOS with MLAG Dual Primary Detection configured, an unauthenticated attacker with access to the Dual Primary Detection network segment can send specially crafted packets to interfere with the dual-primary state. If the MLAG primary switch fails while these packets are present, the secondary switch incorrectly concludes it is in a dual-primary condition and err-disables its interfaces, leading to a traffic interruption.",
      "affected": [
        {
          "vendor": "Arista Networks",
          "product": "EOS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.36.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.36.1F"
            },
            {
              "version": "4.35.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.35.5M"
            },
            {
              "version": "4.34.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.34.7.1M"
            },
            {
              "version": "4.33.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.33.9M"
            },
            {
              "version": "0.0.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.33.0"
            }
          ]
        }
      ]
    }
  }
}