Arista CloudVision Exchange Cluster Instability via Unexpected Switch Messages_CVE-2025-5090

{
    "lastseen": "",
    "description": "CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service (DoS) scenario. Note that this would require the attacker to have a high privilege access to the connected switch to be able to send custom TCP packets to the CVX.",
    "published": "2026-06-05T15:49:27.770Z",
    "modified": "2026-06-05T15:49:27.770Z",
    "type": "cve",
    "title": "Arista CloudVision Exchange Cluster Instability via Unexpected Switch Messages",
    "source": "Arista",
    "references": "https://www.arista.com/en/support/advisories-notices/security-advisory/22868-security-advisory-0126",
    "id": "CVE-2025-5090",
    "bulletinFamily": "",
    "cwe": [
        "CWE-20"
    ],
    "cvelist": null,
    "sourceData": "Arista Networks EOS / CloudVision eXchange (CVX) 4.34.0F\nArista Networks EOS / CloudVision eXchange (CVX) 4.33.0M\nArista Networks EOS / CloudVision eXchange (CVX) 4.32.0M\nArista Networks EOS / CloudVision eXchange (CVX) 4.31.0\nArista Networks EOS / CloudVision eXchange (CVX) 4.30.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "EOS / CloudVision eXchange (CVX)",
    "version": "4.34.0F",
    "vendor": "Arista Networks",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}