Windows IKE CVE-2026-33824 Added to CISA KEV

CISA added four actively exploited high-severity vulnerabilities—including CVE-2026-33824 (Windows IKE double-free, RCE, CVSS 9.8), CVE-2026-55040 (SharePoint weak authentication), CVE-2026-59310 (vCenter directory traversal leading to code execution), and CVE-2026-65400 (macOS Screen Sharing improper authentication)—to its KEV catalog with an August 21, 2026 remediation deadline; the report summarizes affected versions, available patches, exposure-reduction steps, and recommended detection/hunting actions for exposed IKE/IPsec, SharePoint, vCenter, and macOS Screen Sharing services.