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CVE-2026-44818ImportantMonitor

Microsoft Excel Remote Code Execution Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 7)

Remote Code Execution · Important · CVSS 7. Affects: Microsoft Office 365 for Mac, Office Online Server, Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office LTSC.

CVSS 7EPSS 0.3%Update published 2026-06-23Source updated 2026-06-23KB5002875NVD

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

Change history

2026-06-23 · First seen

View at Microsoft →