M365 Change Tracker

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CVE-2026-80073ImportantMonitor

Microsoft Office Outlook Information Disclosure Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity

Information Disclosure · Important. Affects: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Outlook.

Security update published 2026-09-08Applies to Cloud + on-premisesKB5002919NVD

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

Related changes

Change history

2026-09-08 · First captured by tracker

View at Microsoft →