CVE-2026-123378ImportantMonitor
Microsoft Office Outlook Remote Code Execution Vulnerability
Severity Important · Urgency Monitor
Why it matters: Important severity (CVSS 7.5)
Remote Code Execution · Important · CVSS 7.5. Affects: Microsoft Office LTSC, Microsoft 365 Apps.
Affected: Microsoft Office LTSC, Microsoft 365 Apps
Related changes
Change history
2026-11-10 · First captured by tracker