Microsoft · Security update · October 14, 2025
KB5066840: October 2025 security update
KB5066840, released October 14, 2025, fixes 3 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Microsoft's assessment
Highest EPSS
0.0190
79th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 2
Routine 1
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2025-59295 | Internet Explorer | Remote Code Execution | 8.8 | 0.0190 | Exploitation Less Likely |
| High | CVE-2025-59208 | Windows MapUrlToZone | Information Disclosure | 7.1 | 0.0050 | Exploitation Less Likely |
| Routine | CVE-2025-58739 | Windows File Explorer | Spoofing | 6.5 | 0.0082 | Exploitation Less Likely |
Showing 1 to 3 of 3
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