CRITICALZero Day
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Microsoft working on Defender patch for ShieldBreak zero-day

·Source: BleepingComputer

Updated:

Executive Summary

Microsoft is working on a security patch for the "ShieldBreak" zero-day vulnerability disclosed last week by security researcher "Nightmare Eclipse" and now tracked as CVE-2026-69414. [...]

Analysis

Microsoft is working on a security patch for the "ShieldBreak" zero-day vulnerability disclosed last week by security researcher "Nightmare Eclipse" and now tracked as CVE-2026-69414. [...]

Indicators of Compromise (1)

CVE (1)
CVE-2026-69414
NVDMITRE CVE
Source Attribution

Originally published by BleepingComputer on Aug 17, 2026.

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