Skip to content
OpenAdvisories
Medium · 4.3 CVE-2025-7048 EUVD-2026-0962GHSA-8wvr-g2vr-63w6

On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption o

Published Jan 6, 2026 · Updated Jan 6, 2026 · Assigned by Arista

Vendor: Arista Networks Product: EOS Category: Network devices

Description

On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption of dataplane traffic.

Affected products

VendorProductAffectedFixed
Arista Networks EOS 4.34.3.0 – ≤ 4.34.3.1M, 4.33.0 – ≤ 4.33.5M, 4.32.0 – ≤ 4.32.7M, 4.31.0 – ≤ 4.31.9M, < 4.30.0 4.30.0

Advisories 1

References