# KB5012647: April 2022 cumulative update for Windows 10 1809 KB5012647, released April 12, 2022, fixes 92 CVEs across 5 products. 2 of them are being exploited (CVE-2022-26904); 2 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb5012647 - Platform: Microsoft - Released: Apr 12, 2022 - Priority: Patch now (Closes CVE-2022-26904, exploited (CISA KEV)) - CVEs: 92, exploited: 2, on CISA KEV: 2 - Vendor advisory: https://support.microsoft.com/help/5012647 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows 10 Version 1809 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1809-for-32-bit-systems.md) | | 17763.2803 | | [Windows 10 Version 1809 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1809-for-arm64-based-systems.md) | | 17763.2803 | | [Windows 10 Version 1809 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1809-for-x64-based-systems.md) | | 17763.2803 | | [Windows Server 2019](https://patchblox.com/security/data/product/microsoft/windows-server-2019.md) | | 17763.2803 | | [Windows Server 2019 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2019-server-core-installation.md) | | 17763.2803 | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2022-26904](https://patchblox.com/security/data/cve/CVE-2022-26904.md) | Patch now | Windows User Profile Service | 7.0 | 0.1695 | CISA KEV, Disclosed | | [CVE-2022-24521](https://patchblox.com/security/data/cve/CVE-2022-24521.md) | Patch now | Windows Common Log File System Driver | 7.8 | 0.0713 | CISA KEV, Ransomware | | [CVE-2022-26809](https://patchblox.com/security/data/cve/CVE-2022-26809.md) | Urgent | Windows Remote Procedure Call Runtime | 9.8 | 0.9086 | More likely | | [CVE-2022-24500](https://patchblox.com/security/data/cve/CVE-2022-24500.md) | Urgent | Windows SMB | 8.8 | 0.3805 | | | [CVE-2022-24497](https://patchblox.com/security/data/cve/CVE-2022-24497.md) | Urgent | Windows Network File System | 9.8 | 0.3479 | More likely | | [CVE-2022-24491](https://patchblox.com/security/data/cve/CVE-2022-24491.md) | Urgent | Windows Network File System | 9.8 | 0.3347 | More likely | | [CVE-2022-24481](https://patchblox.com/security/data/cve/CVE-2022-24481.md) | Urgent | Windows Common Log File System Driver | 7.8 | 0.1678 | More likely | | [CVE-2022-24542](https://patchblox.com/security/data/cve/CVE-2022-24542.md) | Urgent | Windows Win32K | 7.8 | 0.0915 | More likely | | [CVE-2022-24474](https://patchblox.com/security/data/cve/CVE-2022-24474.md) | Urgent | Windows Win32K | 7.8 | 0.0651 | More likely | | [CVE-2022-24547](https://patchblox.com/security/data/cve/CVE-2022-24547.md) | Urgent | Windows Media | 7.8 | 0.0603 | More likely | | [CVE-2022-24541](https://patchblox.com/security/data/cve/CVE-2022-24541.md) | Urgent | Windows SMB | 8.8 | 0.0305 | | | [CVE-2022-26919](https://patchblox.com/security/data/cve/CVE-2022-26919.md) | Urgent | Windows LDAP - Lightweight Directory Access Protocol | 8.1 | 0.0257 | | | [CVE-2022-24546](https://patchblox.com/security/data/cve/CVE-2022-24546.md) | Urgent | Windows DWM Core Library | 7.8 | 0.0082 | More likely | | [CVE-2022-26914](https://patchblox.com/security/data/cve/CVE-2022-26914.md) | Urgent | Windows Win32K | 7.8 | 0.0082 | More likely | | [CVE-2022-22008](https://patchblox.com/security/data/cve/CVE-2022-22008.md) | Urgent | Role: Windows Hyper-V | 7.8 | 0.0042 | | | [CVE-2022-24537](https://patchblox.com/security/data/cve/CVE-2022-24537.md) | Urgent | Role: Windows Hyper-V | 7.8 | 0.0037 | | | [CVE-2022-24533](https://patchblox.com/security/data/cve/CVE-2022-24533.md) | High | Windows RDP | 8.0 | 0.0560 | | | [CVE-2022-26826](https://patchblox.com/security/data/cve/CVE-2022-26826.md) | High | Role: DNS Server | 7.2 | 0.0405 | | | [CVE-2022-24536](https://patchblox.com/security/data/cve/CVE-2022-24536.md) | High | Role: DNS Server | 7.2 | 0.0384 | | | [CVE-2022-26812](https://patchblox.com/security/data/cve/CVE-2022-26812.md) | High | Role: DNS Server | 7.2 | 0.0384 | | | [CVE-2022-26813](https://patchblox.com/security/data/cve/CVE-2022-26813.md) | High | Role: DNS Server | 7.2 | 0.0384 | | | [CVE-2022-26815](https://patchblox.com/security/data/cve/CVE-2022-26815.md) | High | Role: DNS Server | 7.2 | 0.0384 | | | [CVE-2022-26811](https://patchblox.com/security/data/cve/CVE-2022-26811.md) | High | Role: DNS Server | 7.2 | 0.0358 | | | [CVE-2022-26825](https://patchblox.com/security/data/cve/CVE-2022-26825.md) | High | Role: DNS Server | 7.2 | 0.0358 | | | [CVE-2022-26915](https://patchblox.com/security/data/cve/CVE-2022-26915.md) | High | Windows SChannel | 7.5 | 0.0356 | | | [CVE-2022-26823](https://patchblox.com/security/data/cve/CVE-2022-26823.md) | High | Role: DNS Server | 7.2 | 0.0352 | | | [CVE-2022-26824](https://patchblox.com/security/data/cve/CVE-2022-26824.md) | High | Role: DNS Server | 7.2 | 0.0352 | | | [CVE-2022-24490](https://patchblox.com/security/data/cve/CVE-2022-24490.md) | High | Role: Windows Hyper-V | 8.1 | 0.0333 | | | [CVE-2022-26831](https://patchblox.com/security/data/cve/CVE-2022-26831.md) | High | Windows LDAP - Lightweight Directory Access Protocol | 7.5 | 0.0327 | | | [CVE-2022-24492](https://patchblox.com/security/data/cve/CVE-2022-24492.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0309 | | | [CVE-2022-24539](https://patchblox.com/security/data/cve/CVE-2022-24539.md) | High | Role: Windows Hyper-V | 8.1 | 0.0302 | | | [CVE-2022-26903](https://patchblox.com/security/data/cve/CVE-2022-26903.md) | High | Microsoft Graphics Component | 7.8 | 0.0266 | | | [CVE-2022-24528](https://patchblox.com/security/data/cve/CVE-2022-24528.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0258 | | | [CVE-2022-24487](https://patchblox.com/security/data/cve/CVE-2022-24487.md) | High | Windows Local Security Authority Subsystem Service (LSASS) | 8.8 | 0.0222 | | | [CVE-2022-24545](https://patchblox.com/security/data/cve/CVE-2022-24545.md) | High | Windows Kerberos | 8.1 | 0.0221 | | | [CVE-2022-26916](https://patchblox.com/security/data/cve/CVE-2022-26916.md) | High | Windows Fax Compose Form | 7.8 | 0.0206 | | | [CVE-2022-26917](https://patchblox.com/security/data/cve/CVE-2022-26917.md) | High | Windows Fax Compose Form | 7.8 | 0.0206 | | | [CVE-2022-26918](https://patchblox.com/security/data/cve/CVE-2022-26918.md) | High | Windows Fax Compose Form | 7.8 | 0.0206 | | | [CVE-2022-21983](https://patchblox.com/security/data/cve/CVE-2022-21983.md) | High | Windows kernel32.dll | 7.5 | 0.0205 | | | [CVE-2022-24494](https://patchblox.com/security/data/cve/CVE-2022-24494.md) | High | Windows Ancillary Function Driver for WinSock | 7.8 | 0.0191 | | | [CVE-2022-24534](https://patchblox.com/security/data/cve/CVE-2022-24534.md) | High | Windows kernel32.dll | 7.5 | 0.0190 | | | [CVE-2022-24485](https://patchblox.com/security/data/cve/CVE-2022-24485.md) | High | Windows kernel32.dll | 7.5 | 0.0170 | | | [CVE-2022-24495](https://patchblox.com/security/data/cve/CVE-2022-24495.md) | High | Microsoft Windows Media Foundation | 7.0 | 0.0134 | | | [CVE-2022-24499](https://patchblox.com/security/data/cve/CVE-2022-24499.md) | High | Windows Installer | 7.8 | 0.0100 | | | [CVE-2022-24479](https://patchblox.com/security/data/cve/CVE-2022-24479.md) | High | Windows Feedback Hub | 7.8 | 0.0095 | | | [CVE-2022-24550](https://patchblox.com/security/data/cve/CVE-2022-24550.md) | High | Windows Telephony Server | 7.8 | 0.0088 | | | [CVE-2022-26798](https://patchblox.com/security/data/cve/CVE-2022-26798.md) | High | Windows Print Spooler Components | 7.8 | 0.0085 | | | [CVE-2022-26803](https://patchblox.com/security/data/cve/CVE-2022-26803.md) | High | Windows Print Spooler Components | 7.8 | 0.0085 | | | [CVE-2022-26787](https://patchblox.com/security/data/cve/CVE-2022-26787.md) | High | Windows Print Spooler Components | 7.8 | 0.0080 | | | [CVE-2022-26792](https://patchblox.com/security/data/cve/CVE-2022-26792.md) | High | Windows Print Spooler Components | 7.8 | 0.0080 | | | [CVE-2022-26796](https://patchblox.com/security/data/cve/CVE-2022-26796.md) | High | Windows Print Spooler Components | 7.8 | 0.0080 | | | [CVE-2022-26801](https://patchblox.com/security/data/cve/CVE-2022-26801.md) | High | Windows Print Spooler Components | 7.8 | 0.0080 | | | [CVE-2022-26802](https://patchblox.com/security/data/cve/CVE-2022-26802.md) | High | Windows Print Spooler Components | 7.8 | 0.0080 | | | [CVE-2022-26786](https://patchblox.com/security/data/cve/CVE-2022-26786.md) | High | Windows Print Spooler Components | 7.8 | 0.0079 | | | [CVE-2022-26789](https://patchblox.com/security/data/cve/CVE-2022-26789.md) | High | Windows Print Spooler Components | 7.8 | 0.0077 | | | [CVE-2022-26790](https://patchblox.com/security/data/cve/CVE-2022-26790.md) | High | Windows Print Spooler Components | 7.8 | 0.0071 | | | [CVE-2022-26794](https://patchblox.com/security/data/cve/CVE-2022-26794.md) | High | Windows Print Spooler Components | 7.8 | 0.0071 | | | [CVE-2022-26797](https://patchblox.com/security/data/cve/CVE-2022-26797.md) | High | Windows Print Spooler Components | 7.8 | 0.0071 | | | [CVE-2022-26793](https://patchblox.com/security/data/cve/CVE-2022-26793.md) | High | Windows Print Spooler Components | 7.8 | 0.0068 | | | [CVE-2022-24544](https://patchblox.com/security/data/cve/CVE-2022-24544.md) | High | Windows Kerberos | 7.8 | 0.0068 | | | [CVE-2022-26788](https://patchblox.com/security/data/cve/CVE-2022-26788.md) | High | Windows PowerShell | 7.8 | 0.0065 | | | [CVE-2022-24496](https://patchblox.com/security/data/cve/CVE-2022-24496.md) | High | Windows Local Security Authority Subsystem Service (LSASS) | 7.8 | 0.0065 | | | [CVE-2022-26810](https://patchblox.com/security/data/cve/CVE-2022-26810.md) | High | Windows File Server | 7.8 | 0.0060 | | | [CVE-2022-26795](https://patchblox.com/security/data/cve/CVE-2022-26795.md) | High | Windows Print Spooler Components | 7.8 | 0.0060 | | | [CVE-2022-24530](https://patchblox.com/security/data/cve/CVE-2022-24530.md) | High | Windows Installer | 7.8 | 0.0055 | | | [CVE-2022-24549](https://patchblox.com/security/data/cve/CVE-2022-24549.md) | High | Windows AppX Package Manager | 7.8 | 0.0054 | | | [CVE-2022-24486](https://patchblox.com/security/data/cve/CVE-2022-24486.md) | High | Windows Kerberos | 7.8 | 0.0053 | | | [CVE-2022-24489](https://patchblox.com/security/data/cve/CVE-2022-24489.md) | High | Windows Cluster Client Failover | 7.8 | 0.0050 | | | [CVE-2022-26808](https://patchblox.com/security/data/cve/CVE-2022-26808.md) | High | Windows File Explorer | 7.0 | 0.0043 | | | [CVE-2022-24540](https://patchblox.com/security/data/cve/CVE-2022-24540.md) | High | Windows ALPC | 7.0 | 0.0041 | | | [CVE-2022-26827](https://patchblox.com/security/data/cve/CVE-2022-26827.md) | High | Windows File Server | 7.0 | 0.0041 | | | [CVE-2022-26828](https://patchblox.com/security/data/cve/CVE-2022-26828.md) | High | Microsoft Bluetooth Driver | 7.0 | 0.0035 | | | [CVE-2022-26807](https://patchblox.com/security/data/cve/CVE-2022-26807.md) | High | Windows Work Folder Service | 7.0 | 0.0035 | | | [CVE-2022-24482](https://patchblox.com/security/data/cve/CVE-2022-24482.md) | High | Windows ALPC | 7.0 | 0.0033 | | | [CVE-2022-26783](https://patchblox.com/security/data/cve/CVE-2022-26783.md) | Routine | Role: Windows Hyper-V | 6.5 | 0.0280 | | | [CVE-2022-24498](https://patchblox.com/security/data/cve/CVE-2022-24498.md) | Routine | Windows iSCSI Target Service | 6.5 | 0.0257 | | | [CVE-2022-26816](https://patchblox.com/security/data/cve/CVE-2022-26816.md) | Routine | Role: DNS Server | 6.5 | 0.0252 | | | [CVE-2022-24538](https://patchblox.com/security/data/cve/CVE-2022-24538.md) | Routine | Windows Cluster Shared Volume (CSV) | 6.5 | 0.0245 | | | [CVE-2022-26784](https://patchblox.com/security/data/cve/CVE-2022-26784.md) | Routine | Windows Cluster Shared Volume (CSV) | 6.5 | 0.0245 | | | [CVE-2022-26785](https://patchblox.com/security/data/cve/CVE-2022-26785.md) | Routine | Role: Windows Hyper-V | 6.5 | 0.0238 | | | [CVE-2022-26818](https://patchblox.com/security/data/cve/CVE-2022-26818.md) | Routine | Role: DNS Server | 6.6 | 0.0234 | | | [CVE-2022-24483](https://patchblox.com/security/data/cve/CVE-2022-24483.md) | Routine | Windows Kernel | 5.5 | 0.0226 | | | [CVE-2022-26819](https://patchblox.com/security/data/cve/CVE-2022-26819.md) | Routine | Role: DNS Server | 6.6 | 0.0193 | | | [CVE-2022-26820](https://patchblox.com/security/data/cve/CVE-2022-26820.md) | Routine | Role: DNS Server | 6.6 | 0.0193 | | | [CVE-2022-26821](https://patchblox.com/security/data/cve/CVE-2022-26821.md) | Routine | Role: DNS Server | 6.6 | 0.0193 | | | [CVE-2022-26822](https://patchblox.com/security/data/cve/CVE-2022-26822.md) | Routine | Role: DNS Server | 6.6 | 0.0193 | | | [CVE-2022-26829](https://patchblox.com/security/data/cve/CVE-2022-26829.md) | Routine | Role: DNS Server | 6.6 | 0.0193 | | | [CVE-2022-26814](https://patchblox.com/security/data/cve/CVE-2022-26814.md) | Routine | Active Directory Domain Services | 6.6 | 0.0174 | | | [CVE-2022-26817](https://patchblox.com/security/data/cve/CVE-2022-26817.md) | Routine | Active Directory Domain Services | 6.6 | 0.0174 | | | [CVE-2022-26920](https://patchblox.com/security/data/cve/CVE-2022-26920.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0086 | | | [CVE-2022-24493](https://patchblox.com/security/data/cve/CVE-2022-24493.md) | Routine | Microsoft Local Security Authority Server (lsasrv) | 5.5 | 0.0084 | | | [CVE-2022-24484](https://patchblox.com/security/data/cve/CVE-2022-24484.md) | Routine | Windows Cluster Shared Volume (CSV) | 5.5 | 0.0065 | | --- Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.