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CVE-2026-62870ImportantMonitor

Microsoft Excel Remote Code Execution Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 8.8)

Remote Code Execution · Important · CVSS 8.8. Affects: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC, Microsoft Excel.

CVSS 8.8EPSS 0.8%Security update published 2026-08-21Applies to Cloud + on-premisesKB5002886NVD

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

Related changes

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