Privilege Escalation

Six Zero-Days in One Month: Microsoft February 2026 Patch Tuesday and the Systemic Failure of Security Feature Bypass Defenses

by

Analysis of Microsoft’s February 2026 Patch Tuesday addressing approximately 58-59 vulnerabilities (reporting varies by source) including six actively exploited zero-days, with three security feature bypass flaws consistent with clustered bypass exploitation activity Table of Contents Technical Analysis: Attack Chain Mechanics CVE-2026-21510: Windows SmartScreen and Shell Bypass CVE-2026-21513: MSHTML (Trident) Embedded Rendering Component Bypass CVE-2026-21514: Microsoft … Read more