August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-Day

A use-after-free in the afd.sys Windows kernel-mode driver has been exploited to gain SYSTEM privileges.
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CISA Urges Immediate Patching of Exploited Progress LoadMaster Vulnerability

The critical-severity flaw allows unauthenticated, remote attackers to execute arbitrary commands.
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