CVE-2026-120983: Security Advisory 0215

Published Nov 10, 2026
·
Updated

On affected EOS platforms where 802.1x is configured in multi-host authenticated mode and the device is configured with Policy Based Routing (PBR), traffic from unauthenticated hosts may be forwarded to the destination configured in the PBR policies. This could potentially allow unauthenticated hosts access to networks. Additionally Layer 2 and Layer 3 control packets from unauthenticated hosts may get copied to the CPU.

Affected Software

1 affected component
Arista EOS

Event History

Nov 10, 2026
CVE Published
via MITRE·08:09 PM
Data Sourced
via MITRE·08:09 PM
DescriptionSeverityWeakness

Contact

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