Microsoft · Security update · October 13, 2020

KB4580347: October 2020 security update

KB4580347, released October 13, 2020, fixes 20 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
20
3 rated Critical
Exploited
0
None reported
Exploitation more likely
2
Vendor assessment
Highest EPSS
0.1260
96th percentile

Priority of the 20 CVEs

Patch now 0 Urgent 5 High 12 Routine 3

Applies to

Product
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2020-16896 Windows RDP Information Disclosure 7.5 0.1260 More likely
Urgent CVE-2020-16911 Microsoft Graphics Component Remote Code Execution 8.8 0.0445 Exploitation Less Likely
Urgent CVE-2020-16923 Microsoft Graphics Component Remote Code Execution 7.8 0.0383 Exploitation Less Likely
Urgent CVE-2020-16891 Windows Hyper-V Remote Code Execution 8.8 0.0095 Exploitation Less Likely
Urgent CVE-2020-16922 Microsoft Windows Spoofing 5.3 0.0081 More likely
High CVE-2020-16927 Windows RDP Denial of Service 7.5 0.0592 Exploitation Less Likely
High CVE-2020-16924 Microsoft Windows Remote Code Execution 7.8 0.0412 Exploitation Less Likely
High CVE-2020-16939 Group Policy Elevation of Privilege 7.8 0.0242 Exploitation Less Likely
High CVE-2020-16940 Microsoft Windows Elevation of Privilege 7.8 0.0155 Exploitation Less Likely
High CVE-2020-16920 Microsoft Windows Elevation of Privilege 7.8 0.0142 Exploitation Less Likely
High CVE-2020-16935 Microsoft Windows Elevation of Privilege 7.8 0.0100 Exploitation Less Likely
High CVE-2020-16916 Windows COM Elevation of Privilege 7.8 0.0098 Exploitation Less Likely
High CVE-2020-16902 Windows Installer Elevation of Privilege 7.8 0.0094 Exploitation Less Likely
High CVE-2020-16887 Microsoft Windows Elevation of Privilege 7.8 0.0092 Exploitation Less Likely
High CVE-2020-16892 Windows Kernel Elevation of Privilege 7.8 0.0091 Exploitation Less Likely
High CVE-2020-16980 Microsoft Windows Elevation of Privilege 7.8 0.0090 Exploitation Less Likely
High CVE-2020-16900 Microsoft Windows Elevation of Privilege 7.0 0.0071 Exploitation Less Likely
Routine CVE-2020-16889 Windows Kernel Information Disclosure 5.5 0.0136 Exploitation Less Likely
Routine CVE-2020-16914 Microsoft Graphics Component Information Disclosure 5.5 0.0136 Exploitation Less Likely
Routine CVE-2020-16897 Microsoft Windows Information Disclosure 5.5 0.0124 Exploitation Less Likely
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