Microsoft · Security update · August 10, 2021

KB5005031: August 2021 cumulative update for Windows 10 1909

KB5005031, released August 10, 2021, fixes 25 CVEs across 3 products. 4 of them are being exploited (CVE-2021-36934); 4 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now4 on CISA KEV3 publicly disclosedUnsupported product
CVEs closed
25
7 rated Critical
Exploited
4
CVE-2021-36934
Exploitation more likely
7
Vendor assessment
Highest EPSS
0.6725
99th percentile

Priority of the 25 CVEs

Patch now 4 Urgent 9 High 12 Routine 0

Applies to

ProductBuild after install
Windows 10 Version 1909 for 32-bit Systems18363.1734
Windows 10 Version 1909 for ARM64-based Systems18363.1734
Windows 10 Version 1909 for x64-based Systems18363.1734

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Patch now CVE-2021-36934 Microsoft Windows Elevation of Privilege 7.8 0.6725 KEVDisclosedExploited
Patch now CVE-2021-36948 Windows Update Elevation of Privilege 7.8 0.2327 KEVExploited
Patch now CVE-2021-34484 Windows User Profile Service Elevation of Privilege 7.8 0.2183 KEVExploited
Patch now CVE-2021-34486 Windows Event Tracing Elevation of Privilege 7.8 0.0933 KEVExploited
Urgent CVE-2021-26424 Windows TCP/IP Remote Code Execution 9.9 0.6113 More likely
Urgent CVE-2021-34481 Windows Print Spooler Components Remote Code Execution 8.8 0.4772 DisclosedMore likely
Urgent CVE-2021-34480 Microsoft Scripting Engine Remote Code Execution 6.8 0.3419 More likely
Urgent CVE-2021-34535 Remote Desktop Client Remote Code Execution 8.8 0.2186 More likely
Urgent CVE-2021-26432 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution 9.8 0.1143 More likely
Urgent CVE-2021-36947 Windows Print Spooler Components Remote Code Execution 8.8 0.0756 More likely
Urgent CVE-2021-36936 Windows Print Spooler Components Remote Code Execution 8.8 0.0748 DisclosedMore likely
Urgent CVE-2021-34530 Microsoft Graphics Component Remote Code Execution 7.8 0.0244 Exploitation Less Likely
Urgent CVE-2021-34534 Windows MSHTML Platform Remote Code Execution 6.8 0.0224 Exploitation Less Likely
High CVE-2021-26433 Windows Services for NFS ONCRPC XDR Driver Information Disclosure 7.5 0.0357 Exploitation Less Likely
High CVE-2021-36926 Windows Services for NFS ONCRPC XDR Driver Information Disclosure 7.5 0.0350 Exploitation Less Likely
High CVE-2021-36932 Windows Services for NFS ONCRPC XDR Driver Information Disclosure 7.5 0.0350 Exploitation Less Likely
High CVE-2021-36933 Windows Services for NFS ONCRPC XDR Driver Information Disclosure 7.5 0.0350 Exploitation Less Likely
High CVE-2021-34533 Microsoft Graphics Component Remote Code Execution 7.8 0.0244 Exploitation Less Likely
High CVE-2021-36937 Microsoft Windows Codecs Library Remote Code Execution 7.8 0.0230 Exploitation Less Likely
High CVE-2021-34483 Windows Print Spooler Components Elevation of Privilege 7.8 0.0109 Exploitation Less Likely
High CVE-2021-26425 Windows Event Tracing Elevation of Privilege 7.8 0.0090 Exploitation Less Likely
High CVE-2021-26426 Windows User Profile Service Elevation of Privilege 7.0 0.0071 Exploitation Less Likely
High CVE-2021-34536 Windows Storage Spaces Controller Elevation of Privilege 7.8 0.0064 Exploitation Less Likely
High CVE-2021-34487 Windows Event Tracing Elevation of Privilege 7.0 0.0061 Exploitation Less Likely
High CVE-2021-34537 Windows Bluetooth Service Elevation of Privilege 7.8 0.0050 Exploitation Less Likely
Showing 1 to 25 of 25 1