CVE-2026-73458 On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detection (BFD) sessions configured, a specially crafted packet can cause the BFD session(s) to go down. This may result in undesirable network changes because various rou

[
  {
    "vendor": "Arista Networks",
    "product": "EOS",
    "platforms": [
      "710 Series",
      "720D Series",
      "720XP/722XPM Series",
      "750X Series",
      "7010TX Series",
      "7020R/R4 Series",
      "7130 Series running EOS",
      "7170 Series",
      "7050X3/X4 Series",
      "7060X/X2/X4/X5/X6 Series",
      "7260X/X3 Series",
      "7280R/R2/R3/R4 Series",
      "7300X/X3 Series",
      "7320X Series",
      "7358X4 Series",
      "7368X4 Series",
      "7388X5 Series",
      "7500R/R2/R3 Series",
      "7800R3/R4 Series",
      "7700R4 Series",
      "AWE 5000 Series",
      "AWE 7200R Series",
      "CloudEOS",
      "cEOS-lab",
      "vEOS-lab",
      "CloudVision eXchange",
      "virtual or physical appliance"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "4.36.0",
        "lessThanOrEqual": "4.36.1F",
        "changes": [
          {
            "at": "4.36.2F",
            "status": "unaffected"
          }
        ],
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.35.0",
        "lessThanOrEqual": "4.35.5M",
        "changes": [
          {
            "at": "4.35.6M",
            "status": "unaffected"
          }
        ],
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.34.0",
        "lessThanOrEqual": "4.34.7M",
        "changes": [
          {
            "at": "4.34.8M",
            "status": "unaffected"
          }
        ],
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "4.33.0",
        "lessThanOrEqual": "4.33.8M",
        "changes": [
          {
            "at": "4.33.9M",
            "status": "unaffected"
          }
        ],
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]