Download Security Update for Microsoft Office Web Apps 2010 (KB2346411) from Official Microsoft Download Center

A woman with a laptop on her lap gazes out a window

Office 365

Experience the best of Office with the latest versions of Word, Excel, PowerPoint, and more

Security Update for Microsoft Office Web Apps 2010 (KB2346411)

Important! Selecting a language below will dynamically change the complete page content to that language.

Select Language:
A security vulnerability exists in Microsoft Office Web Access Companion 2010 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.