# KB5036894: April 2024 cumulative update for Windows 11 21H2 KB5036894, released April 9, 2024, fixes 67 CVEs across 2 products. 2 of them are being exploited (CVE-2024-29988); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported. - Web page: https://patchblox.com/security/fix/microsoft/kb5036894 - Platform: Microsoft - Released: Apr 9, 2024 - Priority: Patch now (Closes CVE-2024-29988, exploited (CISA KEV)) - CVEs: 67, exploited: 2, on CISA KEV: 1 - Vendor advisory: https://support.microsoft.com/help/5036894 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Windows 11 version 21H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-21h2-for-arm64-based-systems.md) | | 22000.2899 | | [Windows 11 version 21H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-21h2-for-x64-based-systems.md) | | 22000.2899 | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2024-29988](https://patchblox.com/security/data/cve/CVE-2024-29988.md) | Patch now | Internet Shortcut Files | 8.8 | 0.4515 | CISA KEV | | [CVE-2024-26234](https://patchblox.com/security/data/cve/CVE-2024-26234.md) | Patch now | Windows Proxy Driver | 6.7 | 0.0485 | Exploited, Disclosed | | [CVE-2024-26230](https://patchblox.com/security/data/cve/CVE-2024-26230.md) | Urgent | Windows Remote Access Connection Manager | 7.8 | 0.2411 | More likely | | [CVE-2024-26209](https://patchblox.com/security/data/cve/CVE-2024-26209.md) | Urgent | Windows Local Security Authority Subsystem Service (LSASS) | 5.5 | 0.1481 | More likely | | [CVE-2024-26218](https://patchblox.com/security/data/cve/CVE-2024-26218.md) | Urgent | Windows Kernel | 7.8 | 0.1292 | More likely | | [CVE-2024-26158](https://patchblox.com/security/data/cve/CVE-2024-26158.md) | Urgent | Microsoft Install Service | 7.8 | 0.1226 | More likely | | [CVE-2024-26211](https://patchblox.com/security/data/cve/CVE-2024-26211.md) | Urgent | Windows Remote Access Connection Manager | 7.8 | 0.0412 | More likely | | [CVE-2024-28921](https://patchblox.com/security/data/cve/CVE-2024-28921.md) | Urgent | Windows Secure Boot | 6.7 | 0.0073 | More likely | | [CVE-2024-28903](https://patchblox.com/security/data/cve/CVE-2024-28903.md) | Urgent | Windows Secure Boot | 6.7 | 0.0073 | More likely | | [CVE-2024-26241](https://patchblox.com/security/data/cve/CVE-2024-26241.md) | Urgent | Windows Win32K - ICOMP | 7.8 | 0.0073 | More likely | | [CVE-2024-26239](https://patchblox.com/security/data/cve/CVE-2024-26239.md) | Urgent | Windows Remote Access Connection Manager | 7.8 | 0.0058 | More likely | | [CVE-2024-26229](https://patchblox.com/security/data/cve/CVE-2024-26229.md) | High | Windows Kernel | 7.8 | 0.0938 | | | [CVE-2024-26219](https://patchblox.com/security/data/cve/CVE-2024-26219.md) | High | Windows HTTP.sys | 7.5 | 0.0314 | | | [CVE-2024-26254](https://patchblox.com/security/data/cve/CVE-2024-26254.md) | High | Windows Virtual Machine Bus | 7.5 | 0.0314 | | | [CVE-2024-20678](https://patchblox.com/security/data/cve/CVE-2024-20678.md) | High | Windows Remote Procedure Call | 8.8 | 0.0252 | | | [CVE-2024-26208](https://patchblox.com/security/data/cve/CVE-2024-26208.md) | High | Windows Message Queuing | 7.2 | 0.0228 | | | [CVE-2024-26214](https://patchblox.com/security/data/cve/CVE-2024-26214.md) | High | Microsoft WDAC ODBC Driver | 8.8 | 0.0202 | | | [CVE-2024-26210](https://patchblox.com/security/data/cve/CVE-2024-26210.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0196 | | | [CVE-2024-26244](https://patchblox.com/security/data/cve/CVE-2024-26244.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0196 | | | [CVE-2024-26179](https://patchblox.com/security/data/cve/CVE-2024-26179.md) | High | Windows Routing and Remote Access Service (RRAS) | 8.8 | 0.0181 | | | [CVE-2024-26200](https://patchblox.com/security/data/cve/CVE-2024-26200.md) | High | Windows Routing and Remote Access Service (RRAS) | 8.8 | 0.0181 | | | [CVE-2024-26205](https://patchblox.com/security/data/cve/CVE-2024-26205.md) | High | Windows Routing and Remote Access Service (RRAS) | 8.8 | 0.0181 | | | [CVE-2024-26180](https://patchblox.com/security/data/cve/CVE-2024-26180.md) | High | Windows Secure Boot | 8.0 | 0.0145 | | | [CVE-2024-21447](https://patchblox.com/security/data/cve/CVE-2024-21447.md) | High | Windows Authentication Methods | 7.8 | 0.0138 | | | [CVE-2024-26189](https://patchblox.com/security/data/cve/CVE-2024-26189.md) | High | Windows Secure Boot | 8.0 | 0.0136 | | | [CVE-2024-29050](https://patchblox.com/security/data/cve/CVE-2024-29050.md) | High | Windows Cryptographic Services | 8.4 | 0.0125 | | | [CVE-2024-28925](https://patchblox.com/security/data/cve/CVE-2024-28925.md) | High | Windows Secure Boot | 8.0 | 0.0123 | | | [CVE-2024-26240](https://patchblox.com/security/data/cve/CVE-2024-26240.md) | High | Windows Secure Boot | 8.0 | 0.0106 | | | [CVE-2024-26248](https://patchblox.com/security/data/cve/CVE-2024-26248.md) | High | Windows Kerberos | 7.5 | 0.0103 | | | [CVE-2024-28896](https://patchblox.com/security/data/cve/CVE-2024-28896.md) | High | Windows Secure Boot | 7.5 | 0.0095 | | | [CVE-2024-26232](https://patchblox.com/security/data/cve/CVE-2024-26232.md) | High | Windows Message Queuing | 7.3 | 0.0093 | | | [CVE-2024-20693](https://patchblox.com/security/data/cve/CVE-2024-20693.md) | High | Windows Kernel | 7.8 | 0.0084 | | | [CVE-2024-29062](https://patchblox.com/security/data/cve/CVE-2024-29062.md) | High | Windows Secure Boot | 7.1 | 0.0074 | | | [CVE-2024-28920](https://patchblox.com/security/data/cve/CVE-2024-28920.md) | High | Windows Secure Boot | 7.8 | 0.0072 | | | [CVE-2024-26237](https://patchblox.com/security/data/cve/CVE-2024-26237.md) | High | Windows Defender Credential Guard | 7.8 | 0.0068 | | | [CVE-2024-29061](https://patchblox.com/security/data/cve/CVE-2024-29061.md) | High | Windows Secure Boot | 7.8 | 0.0066 | | | [CVE-2024-26175](https://patchblox.com/security/data/cve/CVE-2024-26175.md) | High | Windows Secure Boot | 7.8 | 0.0064 | | | [CVE-2024-29052](https://patchblox.com/security/data/cve/CVE-2024-29052.md) | High | Windows Storage | 7.8 | 0.0058 | | | [CVE-2024-26228](https://patchblox.com/security/data/cve/CVE-2024-26228.md) | High | Windows Cryptographic Services | 7.8 | 0.0040 | | | [CVE-2024-26243](https://patchblox.com/security/data/cve/CVE-2024-26243.md) | High | Windows USB Print Driver | 7.0 | 0.0039 | | | [CVE-2024-26194](https://patchblox.com/security/data/cve/CVE-2024-26194.md) | High | Windows Secure Boot | 7.4 | 0.0035 | | | [CVE-2024-26242](https://patchblox.com/security/data/cve/CVE-2024-26242.md) | High | Windows Telephony Server | 7.0 | 0.0035 | | | [CVE-2024-26183](https://patchblox.com/security/data/cve/CVE-2024-26183.md) | Routine | Windows Kerberos | 6.5 | 0.0216 | | | [CVE-2024-26220](https://patchblox.com/security/data/cve/CVE-2024-26220.md) | Routine | Windows Mobile Hotspot | 5.0 | 0.0112 | | | [CVE-2024-26168](https://patchblox.com/security/data/cve/CVE-2024-26168.md) | Routine | Windows Secure Boot | 6.8 | 0.0095 | | | [CVE-2024-28897](https://patchblox.com/security/data/cve/CVE-2024-28897.md) | Routine | Windows Secure Boot | 6.8 | 0.0087 | | | [CVE-2024-28898](https://patchblox.com/security/data/cve/CVE-2024-28898.md) | Routine | Windows Secure Boot | 6.3 | 0.0081 | | | [CVE-2024-26207](https://patchblox.com/security/data/cve/CVE-2024-26207.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0076 | | | [CVE-2024-26255](https://patchblox.com/security/data/cve/CVE-2024-26255.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0076 | | | [CVE-2024-28902](https://patchblox.com/security/data/cve/CVE-2024-28902.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0076 | | | [CVE-2024-29064](https://patchblox.com/security/data/cve/CVE-2024-29064.md) | Routine | Role: Windows Hyper-V | 6.2 | 0.0073 | | | [CVE-2024-26252](https://patchblox.com/security/data/cve/CVE-2024-26252.md) | Routine | Windows Internet Connection Sharing (ICS) | 6.8 | 0.0073 | | | [CVE-2024-26253](https://patchblox.com/security/data/cve/CVE-2024-26253.md) | Routine | Windows Internet Connection Sharing (ICS) | 6.8 | 0.0073 | | | [CVE-2024-20665](https://patchblox.com/security/data/cve/CVE-2024-20665.md) | Routine | Windows BitLocker | 6.1 | 0.0073 | | | [CVE-2024-26172](https://patchblox.com/security/data/cve/CVE-2024-26172.md) | Routine | Windows DWM Core Library | 5.5 | 0.0072 | | | [CVE-2024-28922](https://patchblox.com/security/data/cve/CVE-2024-28922.md) | Routine | Windows Secure Boot | 4.1 | 0.0072 | | | [CVE-2024-26217](https://patchblox.com/security/data/cve/CVE-2024-26217.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0069 | | | [CVE-2024-28900](https://patchblox.com/security/data/cve/CVE-2024-28900.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0067 | | | [CVE-2024-28901](https://patchblox.com/security/data/cve/CVE-2024-28901.md) | Routine | Windows Remote Access Connection Manager | 5.5 | 0.0067 | | | [CVE-2024-26171](https://patchblox.com/security/data/cve/CVE-2024-26171.md) | Routine | Windows Secure Boot | 6.7 | 0.0064 | | | [CVE-2024-26250](https://patchblox.com/security/data/cve/CVE-2024-26250.md) | Routine | Windows Secure Boot | 6.7 | 0.0064 | | | [CVE-2024-20669](https://patchblox.com/security/data/cve/CVE-2024-20669.md) | Routine | Windows Secure Boot | 6.7 | 0.0061 | | | [CVE-2024-28919](https://patchblox.com/security/data/cve/CVE-2024-28919.md) | Routine | Windows Secure Boot | 6.7 | 0.0061 | | | [CVE-2024-28924](https://patchblox.com/security/data/cve/CVE-2024-28924.md) | Routine | Windows Secure Boot | 6.7 | 0.0057 | | | [CVE-2024-28923](https://patchblox.com/security/data/cve/CVE-2024-28923.md) | Routine | Windows Secure Boot | 6.4 | 0.0048 | | | [CVE-2024-23593](https://patchblox.com/security/data/cve/CVE-2024-23593.md) | Routine | Windows Secure Boot | 6.7 | 0.0033 | | | [CVE-2024-23594](https://patchblox.com/security/data/cve/CVE-2024-23594.md) | Routine | Windows Secure Boot | 6.4 | 0.0024 | | --- Data as of 2026-11-07T06:34:28Z 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