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Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

cve-program · CVE-2026-7473

Published

EOS

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "Arista Networks",
                    "product": "EOS",
                    "platforms": [
                        "7020R Series",
                        "7280R/R2 Series",
                        "7500R/R2 Series",
                        "7280R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)",
                        "7500R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)",
                        "7800R3 Series (Limited exposure: IP-in-IPv6 and GUEv6)"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.36.0",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.35.0",
                            "lessThanOrEqual": "4.35",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.34.0",
                            "lessThanOrEqual": "4.34",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.33.0",
                            "lessThanOrEqual": "4.33",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.32.0",
                            "lessThanOrEqual": "4.32",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.31.0",
                            "lessThanOrEqual": "4.31",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "*",
                            "lessThanOrEqual": "4.30",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "affected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 11 Nov 11:03 UTC · 264 of 275 readable · 263 fully read · documentation 469/469 current