Description
On affected platforms running Arista EOS with Border Gateway Protocol (BGP) configured, An unauthenticated attacker who can establish a BGP peering session with an affected device and can send specially crafted BGP messages to cause repeated BGP session resets, enabling sustained disruption to network routing and traffic forwarding.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Arista Networks | EOS | 4.36.0F – ≤ 4.36.2F, 4.35.0F – ≤ 4.35.6M, 4.34.0F – ≤ 4.34.8M, 4.33.0F – ≤ 4.33.10M, 1.0.0 – < 4.33.0F | 4.33.0F |
Advisories 1
- WID-SEC-2026-4509 Arista EOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026