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Microsoft Patch Tuesday, August 2026

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Microsoft's August 2026 security release, published August 11, 2026: 67 updates fixing 751 CVEs, ranked by confirmed exploitation, ransomware use, and severity. Provided by Senserva.

Still active now. 4 CVEs from this release are on the Senserva hot list today (as of 2026-08-20), still ranked among the most dangerous vulnerabilities right now by confirmed exploitation, ransomware use, EPSS, and severity. See the current hot list.
67
Updates (KBs)
751
CVEs fixed
1
Exploited zero-day
4
On the CISA KEV list
108
Critical, rated by Microsoft

Severity, as Microsoft rates it

Critical 108Important 396Moderate 207Low 32No rating 8

That covers 743 of the 751; the remaining 8 carry no Severity rating at all.

Zero-days in this release

CVE-2026-68820Windows Ancillary Function Driver for WinSockCVSS 7.0Exploited
CVE-2026-62832Windows User Profile ServiceCVSS 7.8Publicly disclosed
CVE-2026-72971Windows Container Isolation FS Filter DriverCVSS 5.5Publicly disclosed

Actively exploited CVEs (CISA KEV)

CVE-2026-50522Microsoft SharePoint Remote Code Execution VulnerabilityCVSS 9.8Exploited Hot now
CVE-2026-55040Microsoft SharePoint Server Security Feature Bypass VulnerabilityCVSS 9.1Exploited Hot now
CVE-2026-68820Windows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityCVSS 7.0Exploited Hot now
CVE-2026-56164Microsoft SharePoint Server Elevation of Privilege VulnerabilityCVSS 5.3Exploited Hot now

Other high-risk CVEs (CVSS 8.8+)

CVE-2026-62878Windows DNS Server Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-62893Windows Deployment Services TFTP Server Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-65791Windows iSCSI Target Service Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-62815Microsoft QUIC Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-42990SQL Server ODBC driver Elevation of Privilege VulnerabilityCVSS 9.8
CVE-2026-45657Windows Kernel Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-47291HTTP.sys Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-44815DHCP Client Service Remote Code Execution VulnerabilityCVSS 9.8
CVE-2026-42904Windows TCP/IP Elevation of Privilege VulnerabilityCVSS 9.6
CVE-2026-70306Microsoft Office SharePoint Spoofing VulnerabilityCVSS 9.3
CVE-2025-10263ARM: CVE-2025-10263 Completion of affected memory accesses might not be guaranteed by comp...CVSS 9.3
CVE-2026-45602Windows Dynamic Host Configuration Protocol (DHCP) Tampering VulnerabilityCVSS 9.1

Products fixed this month

Windows 10 Version 1809 for x64-based Systems (24)Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation) (18)Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems (18)Microsoft .NET Framework 4.8 on Windows Server 2016 (18)Windows Server 2022 (12)Windows Server 2022 (Server Core installation) (12)Windows 10 Version 1809 for 32-bit Systems (12)Windows Server 2019 (12)Microsoft Office 2019 for 32-bit editions (9)Microsoft 365 Apps for Enterprise for 32-bit Systems (9)

Every update in this release

All 72 update articles, worst first: anything on the CISA KEV list, then by highest CVSS. Each row links our page for the update, Microsoft's support article, and the Update Catalog for a standalone download.

UpdateSeverityMax CVSSCVEs fixedProductsAlso
KB5002891 ExploitedCritical9.840Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002883 ExploitedCritical9.840Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002882 ExploitedCritical9.839Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5120238 ExploitedCritical9.8183Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120242 ExploitedCritical9.8195Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120229 ExploitedCritical9.8195Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120233 ExploitedCritical9.8215Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120228 ExploitedCritical9.8215Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5121003 ExploitedCritical9.8196Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120994 ExploitedCritical9.8196Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5121000 ExploitedCritical9.8198Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120240 ExploitedCritical9.8170Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5120418 ExploitedCritical9.8170Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120386 ExploitedCritical9.8139Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120385 ExploitedCritical9.8144Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5120249 ExploitedHigh8.8161Windows 10 Version 1809 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5095051Critical9.8125Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094123Critical9.890Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094127Critical9.8149Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094125Critical9.8110Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094122Critical9.877Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094042Critical9.865Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5094041Critical9.868Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5002894Critical9.327Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Enterprise Server 2016Support · Catalog
KB5002893Critical9.329Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Enterprise Server 2016Support · Catalog
KB5002905Critical9.323Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002896High8.826Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Enterprise Server 2016Support · Catalog
KB5002906High8.822Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5121573High8.87Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5121576High8.87Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5121574High8.87Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5121575High8.87Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5002884High8.858Microsoft Office 365 for Mac, Office Online Server, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002903High8.825Microsoft Office 365 for Mac, Office Online Server, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002755High8.83Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5120702High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120703High8.84Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120706High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120701High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120698High8.84Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120699High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120700High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120711High8.84Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120714High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120709High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120708High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120713High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120710High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120747High8.84Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120695High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120716High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120704High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5120705High8.83Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016Support · Catalog
KB5123303High7.93Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5123607High7.91Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5123273High7.91Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5122106High7.89.NET 10.0 installed on Mac OS, .NET 10.0 installed on Linux, .NET 8.0 installed on WindowsSupport · Catalog
KB5122104High7.811.NET 10.0 installed on Mac OS, .NET 10.0 installed on Linux, .NET 8.0 installed on WindowsSupport · Catalog
KB5122105High7.811.NET 10.0 installed on Mac OS, .NET 10.0 installed on Linux, .NET 8.0 installed on WindowsSupport · Catalog
KB5002901High7.817Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5002813High7.81Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5002897High7.812Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5002902High7.81Microsoft Office 365 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editionsSupport · Catalog
KB5002791High7.81Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editionsSupport · Catalog
KB5002795High7.81Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editionsSupport · Catalog
KB5002900High7.81Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC 2021 for 32-bit editionsSupport · Catalog
KB5002832High7.85Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
KB5122880High7.01Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5100263Medium6.51Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central Release Wave 1 2025, Microsoft Dynamics 365 Business Central 2026 Release Wave 1Support · Catalog
KB5100266Medium6.51Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central Release Wave 1 2025, Microsoft Dynamics 365 Business Central 2026 Release Wave 1Support · Catalog
KB5100265Medium6.51Microsoft Dynamics 365 Business Central 2024 Release Wave 2, Microsoft Dynamics 365 Business Central Release Wave 1 2025, Microsoft Dynamics 365 Business Central 2026 Release Wave 1Support · Catalog
KB5002899Medium5.51Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit SystemsSupport · Catalog
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Reference: Microsoft CVE and vulnerability management, ranked by real-world risk, and the Microsoft patching guide.
Data notice: this page is provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative Microsoft advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.