Microsoft’s April 2026 Patch Tuesday introduces three concurrent high-priority vulnerabilities affecting SharePoint Server, Microsoft Defender, and the Windows IKEv2 stack, with confirmed active exploitation of CVE-2026-32201 per CISA KEV and a CVSS 9.5 unauthenticated RCE (CVE-2026-33824) carrying wormable network propagation risk. A publicly disclosed Defender privilege escalation (CVE-2026-33825) with available exploit code elevates endpoint compromise risk across all Windows fleets. All three require parallel response tracks; sequential triage is not appropriate this cycle.