FKIE_CVE-2024-6858

Vulnerability from fkie_nvd - Published: 2026-06-04 22:16 - Updated: 2026-06-17 08:18
Severity
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
In Arista’s EOS when in 802.1X mode, multi-auth unauthenticated hosts might be allowed access to a switch port if there exists an EAPOL capable device in the fallback VLAN.
References
psirt@arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisory/19917-security-advisory-0103
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "720D Series",
            "720XP/722XPM Series",
            "750X Series",
            "7010 Series",
            "7010X Series",
            "7020R Series",
            "7130 Series running EOS",
            "7150 Series",
            "7160 Series",
            "7170 Series",
            "7050X/X2/X3/X4 Series",
            "7060X/X2/X4/X5/X6 Series",
            "7250X Series",
            "7260X/X3 Series",
            "7280E/R/R2/R3 Series",
            "7300X/X3 Series",
            "7320X Series",
            "7358X4 Series",
            "7368X4 Series",
            "7388X5 Series",
            "7500E/R/R2/R3 Series",
            "7800R3 Series"
          ],
          "product": "EOS",
          "vendor": "Arista Networks",
          "versions": [
            {
              "lessThanOrEqual": "4.31.1F",
              "status": "affected",
              "version": "4.31.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.30.5M",
              "status": "affected",
              "version": "4.30.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.29.7M",
              "status": "affected",
              "version": "4.29.0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.28.10.1M",
              "status": "affected",
              "version": "4.28.10",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@arista.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Arista\u2019s EOS when in 802.1X mode, multi-auth unauthenticated hosts might be allowed access to a switch port if there exists an EAPOL capable device in the fallback VLAN."
    }
  ],
  "id": "CVE-2024-6858",
  "lastModified": "2026-06-17T08:18:51.233",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-6858",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-05T20:13:55.762154Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-04T22:16:51.843",
  "references": [
    {
      "source": "psirt@arista.com",
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/19917-security-advisory-0103"
    }
  ],
  "sourceIdentifier": "psirt@arista.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1287"
        }
      ],
      "source": "psirt@arista.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.