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Microsoft Addresses Two Actively Exploited Zero-Day Vulnerabilities in July 2026 Patch Tuesday

Microsoft's July 2026 Patch Tuesday addressed 622 vulnerabilities, including two actively exploited zero-day elevation of privilege flaws, CVE-2026-56155 in Active Directory Federation Services and CVE-2026-56164 in SharePoint, allowing local and remote attackers to gain administrative control.

exploited PoC Active Directory Federation Services +23 patch-tuesday zero-day vulnerability microsoft windows sharepoint active-directory-federation-services bitlocker +2
8t 4c 8i updated
medium advisory

CVE-2026-45585: Windows BitLocker Security Feature Bypass Vulnerability ('YellowKey')

CVE-2026-45585 is a security feature bypass vulnerability in Windows BitLocker, known as 'YellowKey', for which a public proof of concept exists, prompting Microsoft to release mitigation guidance prior to a security update.

BitLocker vulnerability security feature bypass
2r
medium advisory

Google Workspace BitLocker Setting Disabled

Detection of Google Workspace administrators disabling the BitLocker setting, potentially allowing adversaries with valid account access to decrypt sensitive data on managed Windows devices.

Google Workspace +2 google_workspace bitlocker defense_evasion
2r 2t