Skip to content
OpenAdvisories
High · 8.2 CVE-2026-120977 EUVD-2026-122800GHSA-jwg7-j8x7-q452

Security Advisory 0217

Published Nov 10, 2026 · Updated Nov 13, 2026 · Assigned by Arista

Description

On affected platforms running Arista EOS with 802.1X with Dynamic Host Configuration Protocol (DHCP) device profiling enabled, a network-adjacent attacker can send a crafted DHCP packet to force the device to record a spoofed device profile. This may potentially allow the authenticated supplicant to acquire unauthorized access to a network segment with elevated privileges.

Affected products

VendorProductAffectedFixed
Arista Networks EOS 4.31.2F – < 4.32.0F, 4.32.0F – < 4.33.0F, 4.33.0F – ≤ 4.33.9M, 4.34.0F – ≤ 4.34.7M, 4.35.0F – ≤ 4.35.5M, 4.36.0F – ≤ 4.36.2F 4.32.0F

Advisories 1

References