CVE-2026-86107

Security Advisory 0180

CVSS 3.1 5.9 MEDIUMCVSS 4.0 8.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-86107

Published

The VeloCloud Edge and Gateway exhibit an out-of-bounds write vulnerability when processing tunneled IP fragments between authenticated overlay neighbors. This vulnerability impacts the VeloCloud VCMP tunnel protocol only. A successful exploit can cause the affected process to terminate and restart, leading to a temporary disruption of traffic. Hosts on the internet that are unauthenticated and unable to form an overlay peer relationship can not trigger the vulnerable logic.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-86107

Published

VeloCloud

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Arista Networks",
                    "product": "VeloCloud",
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "VeloCloud Edge",
                        "VeloCloud Gateway"
                    ],
                    "versions": [
                        {
                            "version": "1.0.0.0",
                            "lessThan": "5.2.0.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.2.0.0",
                            "lessThan": "5.2.7.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.0.0",
                            "lessThan": "6.1.5.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.4.0.0",
                            "lessThan": "6.4.2.0",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }

VeloCloud Gateway

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Arista Networks",
                    "product": "VeloCloud Gateway",
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "VeloCloud Gateway"
                    ],
                    "versions": [
                        {
                            "version": "1.0.0.0",
                            "lessThan": "5.2.0.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.2.0.0",
                            "lessThan": "5.2.7.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.0.0",
                            "lessThan": "6.1.5.0",
                            "status": "affected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.4.0.0",
                            "lessThan": "6.4.2.0",
                            "status": "affected",
                            "versionType": "custom"
                        }
                    ]
                }

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