Microsoft · Security update · August 10, 2021

KB5005076: August 2021 security update

KB5005076, released August 10, 2021, fixes 19 CVEs across 5 products. 2 of them are being exploited (CVE-2021-36942); 2 on CISA KEV. Patch Radar priority: Patch now.

Patch now2 on CISA KEVKnown ransomware use3 publicly disclosed
CVEs closed
19
5 rated Critical
Exploited
2
CVE-2021-36942
Exploitation more likely
7
Vendor assessment
Highest EPSS
0.6602
99th percentile

Priority of the 19 CVEs

Patch now 2 Urgent 7 High 10 Routine 0

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
Patch now CVE-2021-36942 Windows NTLM Spoofing 7.5 0.6602 KEVRansomwareDisclosedExploited
Patch now CVE-2021-34484 Windows User Profile Service Elevation of Privilege 7.8 0.2183 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
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-2021-34537 Windows Bluetooth Service Elevation of Privilege 7.8 0.0050 Exploitation Less Likely
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