Security News > 2023 > June > Windows 11 KB5027231 also breaks Chrome for Cisco, WatchGuard EDR users
The Windows 11 22H2 KB5027231 cumulative update released during this month's Patch Tuesday also breaks Google Chrome on systems protected by Cisco and WatchGuard EDR and antivirus solutions.
As BleepingComputer reported on Wednesday, Windows admins and users report having issues launching the web browser after installing the KB5027231 Windows 11 updates.
"Rolled KB5027231 to a bunch of users, and I have Chrome broken everywhere. Attempting to rollback via wusa shows a 'catastrophic error' in the Event Viewer, and WSUS shows I cannot roll this back," one Windows admin said.
"On June 13, 2023, Microsoft's KB5027231 update installed on Windows 11 caused a conflict between Google Chrome and exploit protection, resulting in browser crashes," Malwarebytes said.
Starting Wednesday, WatchGuard and Cisco Secure Endpoint users have also begun reporting that Google Chrome will not launch after deploying the June 2023 Patch Tuesday cumulative updates.
WatchGuard staff also confirmed on Friday that Google Chrome wouldn't open on Windows 11 after installing KB5027231 if anti-exploit protection is enabled in the company's Endpoint Security software.