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Microsoft Fixes Record 570 Security Flaws in Biggest Patch Tuesday Ever

ID: d417213f-7da2-561d-aca6-737398dd0993

STIX ID: report--d417213f-7da2-561d-aca6-737398dd0993

Feed Name: TechRepublic Security

Threat Score
85/100

Date Published: 2026-07-15

Date Updated: 2026-07-16

Author: Aminu Abdullahi

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Microsoft’s July 2026 Patch Tuesday fixes a record 570 vulnerabilities — including three zero-days (two confirmed as actively exploited in AD FS and SharePoint) and numerous critical RCEs and privilege-elevation flaws across Windows, SharePoint, Exchange, Dynamics and other enterprise products; organizations are urged to prioritize immediate patching and apply recommended mitigations as AI-assisted discovery is accelerating exploitation timelines.

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