Microsoft August 2026 Patch Tuesday Updates Disrupt Printing and PDF Export in WPF Applications
.NET Framework updates cause functional breakage in desktop printing and PDF export features
Key Takeaways
- Microsoft August 2026 Patch Tuesday updates are breaking printing and PDF export in WPF applications.
- The issue affects Windows Presentation Foundation (WPF) desktop applications relying on printing and PDF export features.
- No active exploitation has been reported; the issue is functional breakage rather than an actively exploited vulnerability.
- Microsoft is aware of the issue and working on a resolution, but no official patch or workaround has been publicly released.
- Affected users should monitor Microsoft security updates for a fix.
Quick answers
- What happened?
- Microsoft has confirmed that .NET Framework updates released as part of the August 2026 Patch Tuesday are breaking printing and PDF export functionality in Windows Presentation Foundation (WPF) applications. The issue affects desktop applications relying on these features and is currently under investigation by Microsoft.
- Which products are affected?
- .NET Framework
- What should defenders do?
- Affected users should monitor Microsoft security updates and official channels for a resolution. No official workaround has been published as of the report date. Organizations relying on WPF printing and PDF export should consider temporary alternative methods or rollback of the updates if business-critical functionality is impacted.
Microsoft has confirmed that .NET Framework updates released as part of the August 2026 Patch Tuesday are breaking printing and PDF export functionality in Windows Presentation Foundation (WPF) applications. According to a report from BleepingComputer, the updates are causing functional breakage in legitimate printing and PDF export features within WPF-based desktop applications. Microsoft is aware of the issue and is working on a resolution, but no official patch or workaround has been publicly released as of the report date. The issue stems from the security updates deployed during Patch Tuesday and impacts Windows systems running .NET Framework with WPF applications. No active exploitation of the breakage has been reported; the issue is a functional disruption rather than a security vulnerability being actively exploited. Affected users are advised to monitor Microsoft security updates for a fix.
Security Details
The August 2026 Patch Tuesday updates for .NET Framework have introduced functional breakage in printing and PDF export capabilities within WPF applications. The issue is characterized as a disruption of legitimate features rather than a security vulnerability. Microsoft has confirmed the issue and is investigating, but no patch or workaround has been released.
Affected products
.NET Framework
Mitigation
Affected users should monitor Microsoft security updates and official channels for a resolution. No official workaround has been published as of the report date. Organizations relying on WPF printing and PDF export should consider temporary alternative methods or rollback of the updates if business-critical functionality is impacted.
Sources
BleepingComputer
Microsoft: August updates break printing, PDF export in WPF apps
Aug 24, 2026 · 12:40
Original link
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