Microsoft · Security update · February 10, 2026
KB5074993: February 2026 security update
KB5074993, released February 10, 2026, fixes 1 CVE in Microsoft Exchange Server 2019 Cumulative Update 15. None of them is reported as exploited. Patch Radar priority: Routine.
Routine
CVEs closed
1
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0814
94th percentile
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Routine | CVE-2026-21527 | Microsoft Exchange Server | Spoofing | 6.5 | 0.0814 | Exploitation Less Likely |
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