Microsoft · Security update · June 9, 2026
KB5002879: June 2026 security update
KB5002879, released June 9, 2026, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
3
2 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0046
39th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 2
High 1
Routine 0
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2026-45456 | Microsoft Office | Remote Code Execution | 8.4 | 0.0044 | Exploitation Less Likely |
| Urgent | CVE-2026-45458 | Microsoft Office | Remote Code Execution | 8.4 | 0.0044 | Exploitation Less Likely |
| High | CVE-2026-45471 | Microsoft Office Word | Remote Code Execution | 7.8 | 0.0046 | Exploitation Less Likely |
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