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
Microsoft's assessment
Highest EPSS
0.6725
99th percentile
Priority of the 25 CVEs
Patch now 4
Urgent 9
High 12
Routine 0
Applies to
| Product | Build after install |
|---|---|
| Windows 10 Version 1909 for 32-bit Systems | 18363.1734 |
| Windows 10 Version 1909 for ARM64-based Systems | 18363.1734 |
| Windows 10 Version 1909 for x64-based Systems | 18363.1734 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| 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 |
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