Cybersecurity

Microsoft security advisory (AV26-489)

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Microsoft addressed critical vulnerabilities in Azure, Bitlocker, and Defender, while CISA added two major flaws to its Known Exploited Vulnerabilities Database on May 20, 2026. These updates are essential for tech professionals as they mitigate remote code execution and elevation of privilege risks across core cloud and security infrastructure. Administrators should prioritize updating Microsoft Defender to version 4.18.26040.7 or later and review the specific ALDO patches to prevent potential exploitation.

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