What CVE-2026-20127 Reveals About Your Management Plane’s Trust Model
Cisco’s SD-WAN peering authentication existed in the architecture, appeared in threat models, and passed functional tests — for three years. It never enforced. CVE-2026-20127 reveals a design failure recurring across vendors: authentication gates running after request classification, creating request classes that bypass identity verification. Does any request path reach your processing logic before authentication runs?