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CVE-2026-118300ImportantMonitor

Microsoft Office Excel Information Disclosure Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 6.5)

Information Disclosure · Important · CVSS 6.5. Affects: Microsoft Office LTSC for Mac, Microsoft Office 365 for Mac, Office Online Server, Microsoft Office LTSC, Microsoft 365 Apps.

CVSS 6.5Security update published 2026-11-11Applies to Cloud + on-premisesKB5002946NVD

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

Related changes

Change history

2026-11-10 · First captured by tracker

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