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CVE-2026-124227ImportantMonitor

Microsoft Office Outlook Remote Code Execution Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 7.5)

Remote Code Execution · Important · CVSS 7.5. Affects: Microsoft Office LTSC, Microsoft 365 Apps.

CVSS 7.5Security update published 2026-11-11Applies to Cloud + on-premisesNVD

Affected: Microsoft Office LTSC, Microsoft 365 Apps

Related changes

Change history

2026-11-10 · First captured by tracker

View at Microsoft →