CRITICALZero Day
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New Microsoft Defender 'ShieldBreak' zero-day grants SYSTEM privileges

·Source: BleepingComputer

Updated:

Executive Summary

Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named "ShieldBreak" after Microsoft released the August 2026 Patch Tuesday security updates. [...]

Analysis

Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named "ShieldBreak" after Microsoft released the August 2026 Patch Tuesday security updates. [...]
Source Attribution

Originally published by BleepingComputer on Aug 12, 2026.

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