Summary
Tyler Reguly, Associate Director of Security R&D at Fortra, provides a focused analysis of June 2025's Microsoft Patch Tuesday, highlighting two critical areas requiring immediate attention from security teams. The briefing covers an actively exploited vulnerability involving .URL shortcut files and WebDAV servers (CVE-2025-33053), which has been documented by Checkpoint researchers and requires urgent patching. Additionally, Reguly addresses four Microsoft Office 365 vulnerabilities that are preview pane-affected, meaning they could execute without user interaction when emails are opened. Notably, patches for the Microsoft 365 Office client are not yet available, creating a temporary exposure window that defenders should monitor. This concise update helps security practitioners prioritize their patching efforts for the month and understand the specific risks associated with each vulnerability class.
