{
  "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-2026-2379",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-2379",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-05T17:59:40.999Z",
    "updatedAt": "2026-06-09T14:36:39.468Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "Arista EOS IPsec Tunnel Sequence Number Mismatch via Interface Flaps when Anti-Replay is Disabled",
      "summary": "On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases. Physical interface flaps and certain agent restarts can cause IPsec tunnel re-establishment with existing Security Associations, resulting in sequence number mismatches between tunnel endpoints potentially causing unstable communication.",
      "affected": [
        {
          "vendor": "Arista Networks",
          "product": "EOS",
          "platforms": [
            "7280R3 Series with IPsec (DCS-7280SR3AK",
            "DCS-7280SR3AM",
            "DCS-7280CR3AK",
            "DCS-7280CR3AM",
            "DCS-7280CR3MK",
            "DCS-7280DR3AK",
            "DCS-7280DR3AM",
            "DCS-7289R3AK-SC",
            "DCS-7289R3AM-SC)",
            "7800R3 Series with IPsec (7800R3A-36DM-LC",
            "7800R3AK-36DM-LC",
            "7800R3A-36PM-LC",
            "7800R3AK-36PM-LC",
            "7800R3A-36DM2-LC",
            "7800R3AK-36DM2-LC)",
            "AWE 7000 Series with IPsec (AWE-7250R-16S-F",
            "AWE-7230R-4TX-4S-F",
            "AWE-7220RP-5TH-2S-F)",
            "AWE 5000 Series with IPsec (AWE-5510",
            "AWE-5310)",
            "CloudEOS VM"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.34.0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.34.3M"
            },
            {
              "version": "4.33.0M",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.33.5M"
            },
            {
              "version": "4.32.0M",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.32.7M"
            },
            {
              "version": "4.31.0M",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "4.31.9M"
            },
            {
              "version": "4.30.0F",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.31.0"
            },
            {
              "version": "4.29.0F",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.30.0"
            },
            {
              "version": "4.28.0F",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.29.0"
            },
            {
              "version": "4.27.1F",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.28.0"
            }
          ]
        }
      ]
    }
  }
}