Microsoft · Security update · November 10, 2020

KB4586787: November 2020 cumulative update for Windows 10 1507

KB4586787, released November 10, 2020, fixes 43 CVEs across 6 products. One of them is being exploited (CVE-2020-17087); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEV1 publicly disclosedUnsupported product
CVEs closed
43
3 rated Critical
Exploited
1
CVE-2020-17087
Exploitation more likely
5
Vendor assessment
Highest EPSS
0.2710
98th percentile

Priority of the 43 CVEs

Patch now 1 Urgent 7 High 22 Routine 13

Applies to

ProductBuild after install
Internet Explorer 11 on Windows 10 for 32-bit Systems10240.18756
Internet Explorer 11 on Windows 10 for x64-based Systems10240.18756
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems10240.18756
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems10240.18756
Windows 10 for 32-bit Systems10240.18756
Windows 10 for x64-based Systems10240.18756

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2020-17087 Windows Kernel Elevation of Privilege 7.8 0.0543 KEVDisclosedExploited
Urgent CVE-2020-17042 Microsoft Windows Remote Code Execution 8.8 0.0511 Exploitation Less Likely
Urgent CVE-2020-17058 Microsoft Browsers Remote Code Execution 7.5 0.0309 Exploitation Less Likely
Urgent CVE-2020-17052 Microsoft Scripting Engine Remote Code Execution 7.5 0.0265 More likely
Urgent CVE-2020-17056 Microsoft Windows Information Disclosure 5.5 0.0131 More likely
Urgent CVE-2020-17038 Microsoft Graphics Component Elevation of Privilege 7.8 0.0100 More likely
Urgent CVE-2020-17088 Windows Common Log File System Driver Elevation of Privilege 7.8 0.0088 More likely
Urgent CVE-2020-16998 Microsoft Graphics Component Elevation of Privilege 7.0 0.0085 More likely
High CVE-2020-17047 Microsoft Windows Denial of Service 7.5 0.2710 Exploitation Less Likely
High CVE-2020-16997 Microsoft Windows Information Disclosure 7.7 0.0403 Exploitation Less Likely
High CVE-2020-17043 Microsoft Windows Elevation of Privilege 7.8 0.0285 Exploitation Less Likely
High CVE-2020-17044 Microsoft Windows Elevation of Privilege 7.8 0.0285 Exploitation Less Likely
High CVE-2020-17055 Microsoft Windows Elevation of Privilege 7.8 0.0285 Exploitation Less Likely
High CVE-2020-17011 Microsoft Windows Elevation of Privilege 7.8 0.0104 Exploitation Less Likely
High CVE-2020-17001 Microsoft Windows Elevation of Privilege 7.8 0.0100 Exploitation Less Likely
High CVE-2020-17024 Microsoft Windows Elevation of Privilege 7.8 0.0099 Exploitation Less Likely
High CVE-2020-17041 Microsoft Windows Elevation of Privilege 7.8 0.0099 Exploitation Less Likely
High CVE-2020-17037 Windows WalletService Elevation of Privilege 7.8 0.0098 Exploitation Less Likely
High CVE-2020-17068 Microsoft Graphics Component Remote Code Execution 7.8 0.0098 Exploitation Less Likely
High CVE-2020-17014 Microsoft Windows Elevation of Privilege 7.8 0.0095 Exploitation Less Likely
High CVE-2020-17026 Microsoft Windows Elevation of Privilege 7.8 0.0093 Exploitation Less Likely
High CVE-2020-17027 Microsoft Windows Elevation of Privilege 7.8 0.0092 Exploitation Less Likely
High CVE-2020-17031 Microsoft Windows Elevation of Privilege 7.8 0.0092 Exploitation Less Likely
High CVE-2020-17034 Microsoft Windows Elevation of Privilege 7.8 0.0092 Exploitation Less Likely
High CVE-2020-17025 Microsoft Windows Elevation of Privilege 7.8 0.0091 Exploitation Less Likely
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