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Key Findings Microsoft released security updates to address 58 new vulnerabilities across Windows, Office, Azure, Edge, Exchange, Hyper-V, and other components. The update includes fixes for 6 zero-day vulnerabilities that are being actively exploited in the wild. 5 of the vulnerabilities were rated as "Critical" by Microsoft. Several vulnerabilities affect high-profile targets like GitHub Copilot, IDEs, and Azure cloud services. Background This month's Patch Tuesday from Mic

Key Findings Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps. The vulnerability is a security feature bypass that allows an unauthorized attacker to bypass security protections locally by sending a malicious Office file. Microsoft confirmed the Preview Pane is not an attack vector, but did not disclose technical details about the active exploits. Office 2021 and later are automa