M365 Change Tracker

← All changes · security · CVE-2026-63525

CVE-2026-63525CriticalMonitor

Microsoft Office Word Remote Code Execution Vulnerability

Severity Critical  ·  Urgency Monitor

Why it matters: Critical severity (CVSS 7.8)

Remote Code Execution · Critical · CVSS 7.8. Affects: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Word.

CVSS 7.8EPSS 0.4%Security update published 2026-08-23Applies to Cloud + on-premisesKB5002901NVD

Affected: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Word

Related changes

View at Microsoft →