Breach404
Back to Insights
Secure Software2 min readJuly 17, 2026

New Windows LegacyHive zero-day gives hackers admin privileges

A newly discovered Windows zero-day exploit called LegacyHive allows attackers to gain administrator-level privileges on fully updated Windows systems, representing a critical threat to organizations relying on Windows infrastructure. You should prioritiz

Could your website be vulnerable to attacks like this?

Run a free 10-point security scan on your site — headers, SSL, DNS, and more. Results in 15 seconds.

Test Your Site Now — It's Free