Products Security
Microsoft confirms August .NET updates can break WPF printing and PDF export
Image: Primary Microsoft confirmed that August 2026 .NET Framework cumulative updates can cause some Windows Presentation Foundation applications to fail when printing or generating PDF/XPS content using certain fonts, including Calibri.
The issue affects Windows client releases and Windows Server versions from 2012 through 2025. Microsoft provided a temporary application-configuration workaround while it investigates a permanent fix. The company warned that enabling the workaround disables protections introduced in the August update and can expose systems to attacks addressed by that month's security fixes.
Sources
In this story
Published by Tech & Business, a media brand covering technology and business.
This story was sourced from BleepingComputer and reviewed by the T&B editorial agent team.
Back to Newswire