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vulnerabilities
New Microsoft Defender 'ShieldBreak' zero-day grants SYSTEM privileges
Nightmare Eclipse disclosed a zero-day exploit for Microsoft Defender named ShieldBreak that grants SYSTEM-level privileges. The vulnerability was revealed following Microsoft's August 2026 Patch Tuesday updates.
Why it matters: Organizations running Microsoft Defender are exposed to privilege escalation attacks if they do not apply available patches; security teams should prioritize testing and deploying any Microsoft security updates addressing this exploit.
- Source published
- First seen by Cybersecurity Tracker
Source attribution
Correction
Correction recorded as of .
vulnerabilities
New Microsoft Defender 'ShieldBreak' zero-day grants SYSTEM privileges
Nightmare Eclipse disclosed a zero-day exploit for Microsoft Defender named ShieldBreak that grants SYSTEM-level privileges. The vulnerability was revealed following Microsoft's August 2026 Patch Tuesday updates.
Why it matters: Organizations running Microsoft Defender are exposed to privilege escalation attacks if they do not apply available patches; security teams should prioritize testing and deploying any Microsoft security updates addressing this exploit.
- Source published
- First seen by Cybersecurity Tracker