Cisco Hardens IOS XE and SD-WAN — 12 Flaws Including Three CVSS 9.9s Found With AI-Assisted Auditing

On August 5, 2026, Cisco shipped a massive hardening release for IOS XE and SD-WAN, bundling fixes for 12 vulnerabilities uncovered during an internal AI-assisted security review. Three reach CVSS 9.9. The era of AI-accelerated vulnerability discovery has hit the network hardware industry — and Cisco just showed what that looks like in production.