Microsoft · Security update · September 8, 2026

KB5002919: September 2026 security update

KB5002919, released September 8, 2026, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
3
1 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0092
60th percentile

Priority of the 3 CVEs

Patch now 0 Urgent 1 High 1 Routine 1

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2026-78519 Microsoft Office Outlook Remote Code Execution 8.8 0.0082 Exploitation Less Likely
High CVE-2026-69629 Microsoft Office Outlook Remote Code Execution 8.8 0.0082 Exploitation Less Likely
Routine CVE-2026-80073 Microsoft Office Outlook Information Disclosure 6.5 0.0092 Exploitation Less Likely
Showing 1 to 3 of 3 1