# KB5046613: November 2024 cumulative update for Windows 10 21H2

KB5046613, released November 12, 2024, fixes 31 CVEs across 6 products. 2 of them are being exploited (CVE-2024-43451); 2 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/microsoft/kb5046613
- Platform: Microsoft
- Released: Nov 12, 2024
- Priority: Patch now (Closes CVE-2024-43451, exploited (CISA KEV))
- CVEs: 31, exploited: 2, on CISA KEV: 2
- Vendor advisory: https://support.microsoft.com/help/5046613

## 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-2024-43451](https://patchblox.com/security/data/cve/CVE-2024-43451.md) | Patch now | Windows NTLM | 6.5 | 0.8427 | CISA KEV, Disclosed |
| [CVE-2024-49039](https://patchblox.com/security/data/cve/CVE-2024-49039.md) | Patch now | Windows Task Scheduler | 8.8 | 0.1418 | CISA KEV, Ransomware |
| [CVE-2024-43623](https://patchblox.com/security/data/cve/CVE-2024-43623.md) | Urgent | Windows NT OS Kernel | 7.8 | 0.0451 | More likely |
| [CVE-2024-43629](https://patchblox.com/security/data/cve/CVE-2024-43629.md) | Urgent | Windows DWM Core Library | 7.8 | 0.0436 | More likely |
| [CVE-2024-43630](https://patchblox.com/security/data/cve/CVE-2024-43630.md) | Urgent | Windows Kernel | 7.8 | 0.0378 | More likely |
| [CVE-2024-43636](https://patchblox.com/security/data/cve/CVE-2024-43636.md) | Urgent | Windows DWM Core Library | 7.8 | 0.0068 | More likely |
| [CVE-2024-43452](https://patchblox.com/security/data/cve/CVE-2024-43452.md) | High | Windows Registry | 7.5 | 0.3016 |  |
| [CVE-2024-43624](https://patchblox.com/security/data/cve/CVE-2024-43624.md) | High | Role: Windows Hyper-V | 8.8 | 0.0185 |  |
| [CVE-2024-43627](https://patchblox.com/security/data/cve/CVE-2024-43627.md) | High | Windows Telephony Service | 8.8 | 0.0171 |  |
| [CVE-2024-43628](https://patchblox.com/security/data/cve/CVE-2024-43628.md) | High | Windows Telephony Service | 8.8 | 0.0171 |  |
| [CVE-2024-43635](https://patchblox.com/security/data/cve/CVE-2024-43635.md) | High | Windows Telephony Service | 8.8 | 0.0170 |  |
| [CVE-2024-43620](https://patchblox.com/security/data/cve/CVE-2024-43620.md) | High | Windows Telephony Service | 8.8 | 0.0164 |  |
| [CVE-2024-43621](https://patchblox.com/security/data/cve/CVE-2024-43621.md) | High | Windows Telephony Service | 8.8 | 0.0164 |  |
| [CVE-2024-43622](https://patchblox.com/security/data/cve/CVE-2024-43622.md) | High | Windows Telephony Service | 8.8 | 0.0164 |  |
| [CVE-2024-43626](https://patchblox.com/security/data/cve/CVE-2024-43626.md) | High | Windows Telephony Service | 7.8 | 0.0073 |  |
| [CVE-2024-43641](https://patchblox.com/security/data/cve/CVE-2024-43641.md) | High | Windows Registry | 7.8 | 0.0067 |  |
| [CVE-2024-43516](https://patchblox.com/security/data/cve/CVE-2024-43516.md) | High | Windows Secure Kernel Mode | 7.8 | 0.0062 |  |
| [CVE-2024-43640](https://patchblox.com/security/data/cve/CVE-2024-43640.md) | High | Windows Secure Kernel Mode | 7.8 | 0.0057 |  |
| [CVE-2024-43644](https://patchblox.com/security/data/cve/CVE-2024-43644.md) | High | Windows Client-Side Caching (CSC) Service | 7.8 | 0.0055 |  |
| [CVE-2024-43528](https://patchblox.com/security/data/cve/CVE-2024-43528.md) | High | Windows Secure Kernel Mode | 7.8 | 0.0053 |  |
| [CVE-2024-43530](https://patchblox.com/security/data/cve/CVE-2024-43530.md) | High | Windows Update Stack | 7.8 | 0.0050 |  |
| [CVE-2024-49046](https://patchblox.com/security/data/cve/CVE-2024-49046.md) | High | Windows Win32 Kernel Subsystem | 7.8 | 0.0045 |  |
| [CVE-2024-43511](https://patchblox.com/security/data/cve/CVE-2024-43511.md) | High | Windows Kernel | 7.0 | 0.0038 |  |
| [CVE-2024-43449](https://patchblox.com/security/data/cve/CVE-2024-43449.md) | Routine | Windows USB Video Driver | 6.8 | 0.0074 |  |
| [CVE-2024-43634](https://patchblox.com/security/data/cve/CVE-2024-43634.md) | Routine | Windows USB Video Driver | 6.8 | 0.0074 |  |
| [CVE-2024-43637](https://patchblox.com/security/data/cve/CVE-2024-43637.md) | Routine | Windows USB Video Driver | 6.8 | 0.0074 |  |
| [CVE-2024-43638](https://patchblox.com/security/data/cve/CVE-2024-43638.md) | Routine | Windows USB Video Driver | 6.8 | 0.0074 |  |
| [CVE-2024-43643](https://patchblox.com/security/data/cve/CVE-2024-43643.md) | Routine | Windows USB Video Driver | 6.8 | 0.0074 |  |
| [CVE-2024-38203](https://patchblox.com/security/data/cve/CVE-2024-38203.md) | Routine | Windows Package Library Manager | 6.2 | 0.0068 |  |
| [CVE-2024-43631](https://patchblox.com/security/data/cve/CVE-2024-43631.md) | Routine | Windows Secure Kernel Mode | 6.7 | 0.0054 |  |
| [CVE-2024-43646](https://patchblox.com/security/data/cve/CVE-2024-43646.md) | Routine | Windows Secure Kernel Mode | 6.7 | 0.0054 |  |

---

Data as of 2026-11-07T18:46:35Z 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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