A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows ...
Recently, Microsoft delivered its latest Defender patches for Windows 11 ISOs. These definitions are released from time to time alongside the general security updates available during Patch Tuesday.
Microsoft pushed out-of-band patches on May 21, 2026, for two actively exploited Windows Defender zero-days — one that lets a low-privileged attacker seize full SYSTEM-level control of any Windows ...