CVE-2026-55046ImportantMonitor
Microsoft Excel Information Disclosure Vulnerability
Severity Important · Urgency Monitor
Why it matters: Important severity (CVSS 5.5)
Information Disclosure · Important · CVSS 5.5. Affects: Microsoft Office 365 for Mac, Office Online Server, Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office LTSC.
Affected: Microsoft Office 365 for Mac, Office Online Server, Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office LTSC