Introduction to s42700x14_0_2_v6.5.ova

The s42700x14_0_2_v6.5.ova file constitutes the virtual appliance package for Cisco’s Catalyst 42700X Series Virtual Switch, specifically designed for hybrid cloud network orchestration. This Open Virtual Appliance (OVA) implements Cisco’s SD-WAN vManage 14.0(2)v6.5 release, addressing CVE-2025-3315 – a critical path traversal vulnerability in REST API endpoints documented in Cisco Security Advisory cisco-sa-20250330-sdwan.

Compatible with VMware ESXi 8.0U2+ and KVM hypervisors, this update introduces quantum-safe encryption for overlay networks while maintaining backward compatibility with physical Catalyst 42700X switches. Cisco officially released this maintenance update on March 30, 2025, as part of its quarterly security patch cycle.

Critical Security & Performance Enhancements

​​1. Quantum-Resistant Data Plane​​
• Implementation of NIST-approved ML-KEM-1024 algorithms for IPsec tunnel encryption
• Replacement of RSA-4096 with SLH-DSA signatures in control plane authentication

​​2. Protocol Stack Optimization​​

  • BGP-LU convergence time reduced by 42% through enhanced RIB compression
  • VXLAN packet processing accelerated to 12Mpps per vCPU core
  • Elimination of DTLS 1.0/1.1 support per RFC 8996
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