Microsoft · Security update · September 8, 2026
KB5002898: September 2026 security update
KB5002898, released September 8, 2026, fixes 2 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
2
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0092
60th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 1
Routine 1
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-78526 | Microsoft Office Word | Remote Code Execution | 8.8 | 0.0082 | Exploitation Less Likely |
| Routine | CVE-2026-80084 | Microsoft Office Outlook | Information Disclosure | 6.5 | 0.0092 | Exploitation Less Likely |
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