Critical macOS, SharePoint, vCenter, and Microsoft IKE Flaws Under Active Exploitation

CISA added four critical vulnerabilities related to macOS, SharePoint, vCenter, and Microsoft IKE to its Known Exploited Vulnerabilities catalog. CISA stated that these shortcomings are being exploited in the wild. One specific vulnerability noted is CVE-2026-65400, which is an improper authentication flaw impacting Apple macOS.