Windows Update Flaw Exposes Systems to Past Vulnerabilities

A newly discovered exploit allows attackers to downgrade Windows updates, reintroducing patched security flaws.

Security researcher Alon Leviev demonstrated the exploit at Black Hat 2024.
The tool, named Windows Downdate, can make fully patched systems vulnerable again.
The attack bypasses verification processes, making it undetectable by standard tools.
Microsoft is working on a fix but has not seen the exploit used in the wild yet.
Other operating systems like MacOS and Linux might also be at risk.