Microsoft Exchange has now joined Windows 11 as Pwn2Own zero-day hackers continue to successfully attack the tech giant’s products.

The latest Microsoft Patch Tuesday rollout featured no zero-days. However, an angry hacker has just dropped two new 0-day exploits targeting Windows users.

On the first day of Pwn2Own Berlin 2026, security researchers collected $523,000 in cash awards after exploiting 24 unique zero-days.