webready document viewing

WebReady Document Viewing is a feature in Microsoft Exchange Server that allows users to preview attachments in Outlook Web App without needing the native application. The tag covers security vulnerabilities related to this feature, particularly remote code execution risks. A critical bulletin, MS13-012, addressed a publicly disclosed vulnerability where a specially crafted file previewed via OWA could allow code execution in the context of the transcoding service running as LocalService. This tag is relevant for Exchange administrators and IT security professionals managing update deployments and understanding the security implications of document preview features in enterprise environments.