Microsoft · Security update · December 8, 2020
KB4593466: December 2020 security update
KB4593466, released December 8, 2020, fixes 4 CVEs in Microsoft Exchange Server 2013 Cumulative Update 23. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
4
3 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.8990
99th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 3
High 1
Routine 0
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2020-17132 | Microsoft Exchange Server | Remote Code Execution | 9.1 | 0.8990 | Exploitation Less Likely |
| Urgent | CVE-2020-17117 | Microsoft Exchange Server | Remote Code Execution | 6.6 | 0.4887 | Exploitation Less Likely |
| Urgent | CVE-2020-17142 | Microsoft Exchange Server | Remote Code Execution | 9.1 | 0.0337 | Exploitation Less Likely |
| High | CVE-2020-17143 | Microsoft Exchange Server | Information Disclosure | 8.8 | 0.7063 | Exploitation Less Likely |
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