# KB5043064: September 2024 cumulative update for Windows 10 21H2 KB5043064, released September 10, 2024, fixes 29 CVEs across 6 products. 3 of them are being exploited (CVE-2024-43461); 3 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb5043064 - Platform: Microsoft - Released: Sep 10, 2024 - Priority: Patch now (Closes CVE-2024-43461, exploited (CISA KEV)) - CVEs: 29, exploited: 3, on CISA KEV: 3 - Vendor advisory: https://support.microsoft.com/help/5043064 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows 10 Version 21H2 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-32-bit-systems.md) | | | | [Windows 10 Version 21H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-arm64-based-systems.md) | | | | [Windows 10 Version 21H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-21h2-for-x64-based-systems.md) | | | | [Windows 10 Version 22H2 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-32-bit-systems.md) | | | | [Windows 10 Version 22H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-arm64-based-systems.md) | | | | [Windows 10 Version 22H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-22h2-for-x64-based-systems.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2024-43461](https://patchblox.com/security/data/cve/CVE-2024-43461.md) | Patch now | Windows MSHTML Platform | 8.8 | 0.5449 | CISA KEV, Disclosed | | [CVE-2024-38217](https://patchblox.com/security/data/cve/CVE-2024-38217.md) | Patch now | Windows Mark of the Web (MOTW) | 5.4 | 0.1003 | CISA KEV, Disclosed | | [CVE-2024-38014](https://patchblox.com/security/data/cve/CVE-2024-38014.md) | Patch now | Windows Installer | 7.8 | 0.0626 | CISA KEV | | [CVE-2024-38244](https://patchblox.com/security/data/cve/CVE-2024-38244.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0619 | More likely | | [CVE-2024-38241](https://patchblox.com/security/data/cve/CVE-2024-38241.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0602 | More likely | | [CVE-2024-38237](https://patchblox.com/security/data/cve/CVE-2024-38237.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0341 | More likely | | [CVE-2024-38242](https://patchblox.com/security/data/cve/CVE-2024-38242.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0335 | More likely | | [CVE-2024-43487](https://patchblox.com/security/data/cve/CVE-2024-43487.md) | Urgent | Windows Mark of the Web (MOTW) | 6.5 | 0.0123 | More likely | | [CVE-2024-38249](https://patchblox.com/security/data/cve/CVE-2024-38249.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0095 | More likely | | [CVE-2024-38245](https://patchblox.com/security/data/cve/CVE-2024-38245.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0087 | More likely | | [CVE-2024-38238](https://patchblox.com/security/data/cve/CVE-2024-38238.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0077 | More likely | | [CVE-2024-38243](https://patchblox.com/security/data/cve/CVE-2024-38243.md) | Urgent | Microsoft Streaming Service | 7.8 | 0.0076 | More likely | | [CVE-2024-38119](https://patchblox.com/security/data/cve/CVE-2024-38119.md) | Urgent | Windows Network Address Translation (NAT) | 7.5 | 0.0076 | | | [CVE-2024-38247](https://patchblox.com/security/data/cve/CVE-2024-38247.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0070 | More likely | | [CVE-2024-38252](https://patchblox.com/security/data/cve/CVE-2024-38252.md) | Urgent | Windows Win32K - ICOMP | 7.8 | 0.0060 | More likely | | [CVE-2024-38246](https://patchblox.com/security/data/cve/CVE-2024-38246.md) | Urgent | Windows Win32K - GRFX | 7.0 | 0.0057 | More likely | | [CVE-2024-38257](https://patchblox.com/security/data/cve/CVE-2024-38257.md) | High | Windows AllJoyn API | 7.5 | 0.0447 | | | [CVE-2024-38239](https://patchblox.com/security/data/cve/CVE-2024-38239.md) | High | Windows Kerberos | 7.2 | 0.0175 | | | [CVE-2024-38240](https://patchblox.com/security/data/cve/CVE-2024-38240.md) | High | Windows Remote Access Connection Manager | 8.1 | 0.0149 | | | [CVE-2024-38045](https://patchblox.com/security/data/cve/CVE-2024-38045.md) | High | Windows TCP/IP | 8.1 | 0.0143 | | | [CVE-2024-21416](https://patchblox.com/security/data/cve/CVE-2024-21416.md) | High | Windows TCP/IP | 8.1 | 0.0138 | | | [CVE-2024-30073](https://patchblox.com/security/data/cve/CVE-2024-30073.md) | High | Windows Security Zone Mapping | 7.8 | 0.0090 | | | [CVE-2024-38046](https://patchblox.com/security/data/cve/CVE-2024-38046.md) | High | Windows PowerShell | 7.8 | 0.0070 | | | [CVE-2024-38250](https://patchblox.com/security/data/cve/CVE-2024-38250.md) | High | Microsoft Graphics Component | 7.8 | 0.0069 | | | [CVE-2024-38248](https://patchblox.com/security/data/cve/CVE-2024-38248.md) | High | Windows Storage | 7.0 | 0.0057 | | | [CVE-2024-38234](https://patchblox.com/security/data/cve/CVE-2024-38234.md) | Routine | Windows Network Virtualization | 6.5 | 0.0093 | | | [CVE-2024-38254](https://patchblox.com/security/data/cve/CVE-2024-38254.md) | Routine | Windows Authentication Methods | 5.5 | 0.0072 | | | [CVE-2024-38235](https://patchblox.com/security/data/cve/CVE-2024-38235.md) | Routine | Role: Windows Hyper-V | 6.5 | 0.0072 | | | [CVE-2024-38256](https://patchblox.com/security/data/cve/CVE-2024-38256.md) | Routine | Windows Kernel-Mode Drivers | 5.5 | 0.0072 | | --- Data as of 2026-11-08T13:06:02Z UTC. 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