Description
On affected Arista EOS platforms running Border Gateway Protocol with Link State ( BGP-LS) and configured with the Dynamic Path Selection (DPS) consumer role, an attacker who has established an authenticated BGP-LS session with the device can send a crafted message to cause the BGP agent to restart unexpectedly. An Arista Pathfinder deployment is not required.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Arista Networks | EOS | 4.34.0F ≤4.34.8M | — |
| Arista Networks | EOS | 4.35.0F ≤4.35.6M | — |
| Arista Networks | EOS | 4.32.0F <4.33.0F | — |
| Arista Networks | EOS | 4.36.0F ≤4.36.2F | — |
| Arista Networks | EOS | 1.0.0 <4.33.0F | — |
| Arista Networks | EOS | 4.33.0F ≤4.33.10M | — |
Advisories 1
- WID-SEC-2026-4509 Arista EOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026