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CVE-2026-121370

🗓️ 10 Nov 2026 20:10:01Reported by AristaType 
cve
 cve
🔗 web.nvd.nist.gov👁 9 Views

Unauthenticated DoS in Arista EOS via PTP-enabled port traffic.

Related
Detection
Affected
Refs
Vulners
Node
OR
aristaeosRange4.34.0f–4.34.1f
aristaeosRange4.33.0f–4.33.8m
aristaeosRange4.32.0f–4.33.0f
aristaeosRange4.31.0f–4.32.0f
aristaeosRange4.30.0f–4.31.0f
aristaeosRange4.29.2f–4.30.0f
[
  {
    "vendor": "Arista Networks",
    "product": "EOS",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "4.34.0F",
        "status": "affected",
        "versionType": "custom",
        "lessThanOrEqual": "4.34.1F"
      },
      {
        "version": "4.33.0F",
        "status": "affected",
        "versionType": "custom",
        "lessThanOrEqual": "4.33.8M"
      },
      {
        "version": "4.32.0F",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "4.33.0F"
      },
      {
        "version": "4.31.0F",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "4.32.0F"
      },
      {
        "version": "4.30.0F",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "4.31.0F"
      },
      {
        "version": "4.29.2F",
        "status": "affected",
        "versionType": "custom",
        "lessThan": "4.30.0F"
      }
    ],
    "platforms": [
      "750X Series"
    ]
  }
]

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12 Nov 2026 19:24Current
6Medium risk
Vulners AI Score6
CVSS 3.18.6
CVSS 49.2
EPSS0.00512
SSVC
9