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zero-day
Microsoft confirms work on patch for Defender zero-day
Microsoft has formally acknowledged a privilege escalation vulnerability in the Microsoft Malware Protection Engine, now tracked as CVE-2026-50656 with a CVSS score of 7.8, and said it is developing a security update to address the flaw. The vulnerability, publicly referred…
New zero-day hits Windows Defender hours after record Patch Tuesday
Hours after Microsoft released its largest-ever Patch Tuesday update on Tuesday, a security researcher known as Nightmare Eclipse published a new proof-of-concept exploit called RoguePlanet that grants SYSTEM-level privileges on fully patched Windows 10 and Windows 11 systems through a…