CVE-2026-78520CriticalMonitor
Microsoft Office Outlook Information Disclosure Vulnerability
Severity Critical · Urgency Monitor
Why it matters: Critical severity (CVSS 6.5)
Remote Code Execution · Critical · CVSS 6.5. Affects: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office LTSC, Microsoft Word, Microsoft Office 365 for Mac.
Affected: Microsoft Office, Microsoft 365 Apps, Microsoft Office LTSC for Mac, Microsoft Office LTSC, Microsoft Word, Microsoft Office 365 for Mac
Related changes
Change history
2026-09-08 · First captured by tracker