Microsoft Entra ID & Exchange/SharePoint: Multiple Critical Vulnerabilities (CVE-2026-55008, CVE-2026-56164, CVE-2026-55040)
Microsoft Entra ID is introducing passkeys as the default. At the same time, critical zero-day vulnerabilities were disclosed in SharePoint (CVE-2026-56164), AD FS (CVE-2026-55040, CVSS 9.1), and Exchange (CVE-2026-55008). Updates are available.
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