CVE-2026-86107
Security Advisory 0180
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | arista networks |
| Product | velocloud |
| Published | Sep 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Arista Networks / VeloCloud
1.0.0.0 < 5.2.0.0 5.2.0.0 < 5.2.7.0 6.1.0.0 < 6.1.5.0 6.4.0.0 < 6.4.2.0
Arista Networks / VeloCloud Gateway
1.0.0.0 < 5.2.0.0 5.2.0.0 < 5.2.7.0 6.1.0.0 < 6.1.5.0 6.4.0.0 < 6.4.2.0