Microsoft Releases Critical Security Update for Windows 10 Addressing 570 Vulnerabilities
ID: f5851fd6-5c5a-554b-a35f-7172ed8f4a69
STIX ID: report--f5851fd6-5c5a-554b-a35f-7172ed8f4a69
Feed Name: ThreatCluster
Threat Score
Microsoft released Windows 10 update KB5099539 on July 14, 2026, addressing 570 vulnerabilities — including two zero-days reportedly exploited in the wild — and extending the free ESU program for Windows 10 until October 12, 2027; the update also introduces security hardening for RDP and significant TDI transport registration changes that may break legacy applications.
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