On affected platforms running Arista EOS under specific link configurations an attacker with direct connectivity to the system may cause system CPU and memory utilization to increase considerably leading to slow responsiveness and eventually may cause the system to reboot.

CVSS Details

CVSS 4.0 Base Score: 6.7 (MEDIUM)
CVSS 4.0 Vector: (CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Prioritize with Active Threat Intelligence

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVE-2026-121369: Arista Networks EOS: On affected platforms running Arista EOS under specific link configurations an attacker with direct connectivity to the…

CVSS Details

Prioritize with Active Threat Intelligence