Microsoft · Security update · October 12, 2021

KB5006675: October 2021 cumulative update for Windows 10 1507

KB5006675, released October 12, 2021, fixes 30 CVEs across 2 products. One of them is being exploited (CVE-2021-40449); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVKnown ransomware use2 publicly disclosedUnsupported product

CVEs closed

None rated Critical

Exploited

CVE-2021-40449

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.8194

99th percentile

Priority of the 30 CVEs

Patch now 1
                                Urgent 5
                                High 15
                                Routine 9

Applies to

Product	Build after install
Windows 10 for 32-bit Systems	10240.19086
Windows 10 for x64-based Systems	10240.19086

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2021-40449	Windows Win32K	Elevation of Privilege	7.8	0.8194	KEVRansomwareExploited
Urgent	CVE-2021-36970	Windows Print Spooler Components	Spoofing	8.8	0.0306	More likely
Urgent	CVE-2021-40443	Windows Common Log File System Driver	Elevation of Privilege	7.8	0.0065	More likely
Urgent	CVE-2021-40466	Windows Common Log File System Driver	Elevation of Privilege	7.8	0.0065	More likely
Urgent	CVE-2021-40470	Windows DirectX	Elevation of Privilege	7.8	0.0065	More likely
Urgent	CVE-2021-40467	Windows Common Log File System Driver	Elevation of Privilege	7.8	0.0054	More likely
High	CVE-2021-36953	Windows TCP/IP	Denial of Service	7.5	0.0505	Exploitation Less Likely
High	CVE-2021-40463	Windows Network Address Translation (NAT)	Denial of Service	7.7	0.0258	Exploitation Less Likely
High	CVE-2021-40465	Windows Text Shaping	Remote Code Execution	7.8	0.0247	Exploitation Less Likely
High	CVE-2021-40476	Windows AppContainer	Elevation of Privilege	7.5	0.0240	Exploitation Less Likely
High	CVE-2021-41331	Microsoft Windows Codecs Library	Remote Code Execution	7.8	0.0203	Exploitation Less Likely
High	CVE-2021-41340	Microsoft Graphics Component	Remote Code Execution	7.8	0.0203	Exploitation Less Likely
High	CVE-2021-41335	Windows Kernel	Elevation of Privilege	7.8	0.0137	DisclosedExploitation Less Likely
High	CVE-2021-40488	Windows Storage Spaces Controller	Elevation of Privilege	7.8	0.0100	Exploitation Less Likely
High	CVE-2021-26441	Windows Storage Spaces Controller	Elevation of Privilege	7.8	0.0094	Exploitation Less Likely
High	CVE-2021-40478	Windows Storage Spaces Controller	Elevation of Privilege	7.8	0.0084	Exploitation Less Likely
High	CVE-2021-40489	Windows Storage Spaces Controller	Elevation of Privilege	7.8	0.0084	Exploitation Less Likely
High	CVE-2021-41345	Windows Storage Spaces Controller	Elevation of Privilege	7.8	0.0083	Exploitation Less Likely
High	CVE-2021-26442	Windows HTTP.sys	Elevation of Privilege	7.0	0.0079	Exploitation Less Likely
High	CVE-2021-41347	Windows AppX Deployment Service	Elevation of Privilege	7.8	0.0071	Exploitation Less Likely
High	CVE-2021-40477	Windows Event Tracing	Elevation of Privilege	7.8	0.0058	Exploitation Less Likely
Routine	CVE-2021-41338	Windows AppContainer	Security Feature Bypass	5.5	0.0330	DisclosedExploitation Less Likely
Routine	CVE-2021-41332	Windows Print Spooler Components	Information Disclosure	6.5	0.0272	Exploitation Less Likely
Routine	CVE-2021-41342	Windows MSHTML Platform	Remote Code Execution	6.8	0.0163	Exploitation Less Likely
Routine	CVE-2021-40460	Windows Remote Procedure Call Runtime	Security Feature Bypass	6.5	0.0161	Exploitation Less Likely

Released the same day

KB4018332
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB4461476
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB4493202
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
KB4618795
Microsoft Dynamics 365 (on-premises) version 9.0, Microsoft Dynamics 365 Customer Engagement V9.0
KB4618810
Microsoft Dynamics 365 (on-premises) version 9.1, Microsoft Dynamics 365 Customer Engagement V9.1
KB5001924
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
KB5001960
Microsoft Word 2013 RT Service Pack 1, Microsoft Word 2013 Service Pack 1 (32-bit editions), Microsoft Word 2013 Service Pack 1 (64-bit editions)
KB5001982
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5001985
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB5002004
Microsoft Word 2016 (32-bit edition), Microsoft Word 2016 (64-bit edition)
KB5002006
Microsoft SharePoint Enterprise Server 2016
KB5002027
Microsoft Office Online Server

Vendor advisory

https://support.microsoft.com/help/5006675

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