# KB5036893: April 2024 cumulative update for Windows 11 22H2

KB5036893, released April 9, 2024, fixes 63 CVEs across 4 products. 2 of them are being exploited (CVE-2024-29988); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/microsoft/kb5036893
- Platform: Microsoft
- Released: Apr 9, 2024
- Priority: Patch now (Closes CVE-2024-29988, exploited (CISA KEV))
- CVEs: 63, exploited: 2, on CISA KEV: 1
- Vendor advisory: https://support.microsoft.com/help/5036893

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Windows 11 Version 22H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-22h2-for-arm64-based-systems.md) |  |  |
| [Windows 11 Version 22H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-22h2-for-x64-based-systems.md) |  |  |
| [Windows 11 Version 23H2 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-23h2-for-arm64-based-systems.md) |  |  |
| [Windows 11 Version 23H2 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-11-version-23h2-for-x64-based-systems.md) |  |  |

## 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-2024-26256](https://patchblox.com/security/data/cve/CVE-2024-26256.md) | Urgent | Windows Compressed Folder | 7.8 | 0.8790 | More likely |
| [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-2024-28921](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-2024-26255](https://patchblox.com/security/data/cve/CVE-2024-26255.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-2024-28901](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 2026-11-07T12:40:37Z 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

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