CVE-2026-20051

Summary: CVE-2026-20051 affects Cisco Nexus 3600 Series switches and Nexus 9500-R Series platforms, where a logic error in Ethernet VPN (EVPN) Layer 2 ingress packet processing can be triggered by a crafted Layer 2 frame. An unauthenticated, adjacent attacker could induce a Layer 2 traffic loop t...