Patch time for Cisco SD-WAN admins as vendor drops yet another make-me-admin zero-day

Cisco admins face emergency patch duty after Switchzilla disclosed a max-severity make-me-admin bug affecting Catalyst SD-WAN Controller and Manager. Switchzilla dropped an advisory for CVE-2026-20182 (10.0) on Thursday, saying that both components, formerly known as vSmart and vManage, were vulnerable in all deployment types, and that fixes were available. The bug allows unauthenticated remote attackers to bypass authentication and gain admin privileges on an affected system.