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CVE-2026-124229ImportantMonitor

Microsoft Office Excel Remote Code Execution Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 6.6)

Remote Code Execution · Important · CVSS 6.6. Affects: Microsoft Office LTSC, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office 365 for Mac.

CVSS 6.6Security update published 2026-11-11Applies to Cloud + on-premisesNVD

Affected: Microsoft Office LTSC, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office 365 for Mac

Related changes

Change history

2026-11-10 · First captured by tracker

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