Cisco SD-WAN Manager admin API bypass hits CISA KEV

How to fix CVE-2026-76504: upgrade Cisco Catalyst SD-WAN Manager to 20.9.10.1 / 20.12.8.2 / 20.15.6.1 / 20.18.4.1 / 26.1.2.1 / 26.2.1. Same-day CISA KEV on Cisco SD-WAN Manager admin API bypass; federal due 2026-10-03.