# KB5031361: October 2023 cumulative update for Windows 10 1809

KB5031361, released October 10, 2023, fixes 79 CVEs across 5 products. 3 of them are being exploited (CVE-2023-44487); 3 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/microsoft/kb5031361
- Platform: Microsoft
- Released: Oct 10, 2023
- Priority: Patch now (Closes CVE-2023-44487, exploited (CISA KEV))
- CVEs: 79, exploited: 3, on CISA KEV: 3
- Vendor advisory: https://support.microsoft.com/help/5031361

## 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) |  | 17763.4974 |
| [Windows 10 Version 1809 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1809-for-arm64-based-systems.md) |  | 17763.4974 |
| [Windows 10 Version 1809 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1809-for-x64-based-systems.md) |  | 17763.4974 |
| [Windows Server 2019](https://patchblox.com/security/data/product/microsoft/windows-server-2019.md) |  | 17763.4974 |
| [Windows Server 2019 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2019-server-core-installation.md) |  | 17763.4974 |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-44487](https://patchblox.com/security/data/cve/CVE-2023-44487.md) | Patch now | HTTP/2 | 7.5 | 1.0000 | CISA KEV |
| [CVE-2023-36563](https://patchblox.com/security/data/cve/CVE-2023-36563.md) | Patch now | Microsoft WordPad | 6.5 | 0.2032 | CISA KEV, Disclosed |
| [CVE-2023-36584](https://patchblox.com/security/data/cve/CVE-2023-36584.md) | Patch now | Windows Mark of the Web (MOTW) | 5.4 | 0.0325 | CISA KEV |
| [CVE-2023-41772](https://patchblox.com/security/data/cve/CVE-2023-41772.md) | Urgent | Windows Win32K | 7.8 | 0.1331 | More likely |
| [CVE-2023-36594](https://patchblox.com/security/data/cve/CVE-2023-36594.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0800 | More likely |
| [CVE-2023-36713](https://patchblox.com/security/data/cve/CVE-2023-36713.md) | Urgent | Windows Common Log File System Driver | 5.5 | 0.0733 | More likely |
| [CVE-2023-36731](https://patchblox.com/security/data/cve/CVE-2023-36731.md) | Urgent | Windows Win32K | 7.8 | 0.0662 | More likely |
| [CVE-2022-37967](https://patchblox.com/security/data/cve/CVE-2022-37967.md) | Urgent | Windows Kerberos | 7.2 | 0.0482 | More likely |
| [CVE-2023-38159](https://patchblox.com/security/data/cve/CVE-2023-38159.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0406 | More likely |
| [CVE-2023-36743](https://patchblox.com/security/data/cve/CVE-2023-36743.md) | Urgent | Windows Win32K | 7.8 | 0.0363 | More likely |
| [CVE-2023-35349](https://patchblox.com/security/data/cve/CVE-2023-35349.md) | Urgent | Windows Message Queuing | 9.8 | 0.0289 |  |
| [CVE-2023-36697](https://patchblox.com/security/data/cve/CVE-2023-36697.md) | Urgent | Windows Message Queuing | 6.8 | 0.0220 |  |
| [CVE-2023-36776](https://patchblox.com/security/data/cve/CVE-2023-36776.md) | Urgent | Windows Win32K | 7.0 | 0.0205 | More likely |
| [CVE-2023-36718](https://patchblox.com/security/data/cve/CVE-2023-36718.md) | Urgent | Windows Virtual Trusted Platform Module | 7.8 | 0.0133 |  |
| [CVE-2023-41773](https://patchblox.com/security/data/cve/CVE-2023-41773.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0131 |  |
| [CVE-2023-41774](https://patchblox.com/security/data/cve/CVE-2023-41774.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0131 |  |
| [CVE-2023-38166](https://patchblox.com/security/data/cve/CVE-2023-38166.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41765](https://patchblox.com/security/data/cve/CVE-2023-41765.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41767](https://patchblox.com/security/data/cve/CVE-2023-41767.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41768](https://patchblox.com/security/data/cve/CVE-2023-41768.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41769](https://patchblox.com/security/data/cve/CVE-2023-41769.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41770](https://patchblox.com/security/data/cve/CVE-2023-41770.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-41771](https://patchblox.com/security/data/cve/CVE-2023-41771.md) | Urgent | Windows Layer 2 Tunneling Protocol | 8.1 | 0.0130 |  |
| [CVE-2023-36732](https://patchblox.com/security/data/cve/CVE-2023-36732.md) | Urgent | Windows Win32K | 7.8 | 0.0063 | More likely |
| [CVE-2023-36606](https://patchblox.com/security/data/cve/CVE-2023-36606.md) | High | Windows Message Queuing | 7.5 | 0.6936 |  |
| [CVE-2023-36709](https://patchblox.com/security/data/cve/CVE-2023-36709.md) | High | Windows AllJoyn API | 7.5 | 0.0268 |  |
| [CVE-2023-36585](https://patchblox.com/security/data/cve/CVE-2023-36585.md) | High | Windows UPnP Device Host | 7.5 | 0.0260 |  |
| [CVE-2023-36703](https://patchblox.com/security/data/cve/CVE-2023-36703.md) | High | Windows DHCP Server | 7.5 | 0.0252 |  |
| [CVE-2023-36720](https://patchblox.com/security/data/cve/CVE-2023-36720.md) | High | Windows Mixed Reality Developer Tools | 7.5 | 0.0252 |  |
| [CVE-2023-36431](https://patchblox.com/security/data/cve/CVE-2023-36431.md) | High | Windows Message Queuing | 7.5 | 0.0248 |  |
| [CVE-2023-36579](https://patchblox.com/security/data/cve/CVE-2023-36579.md) | High | Windows Message Queuing | 7.5 | 0.0248 |  |
| [CVE-2023-36581](https://patchblox.com/security/data/cve/CVE-2023-36581.md) | High | Windows Message Queuing | 7.5 | 0.0248 |  |
| [CVE-2023-36602](https://patchblox.com/security/data/cve/CVE-2023-36602.md) | High | Windows TCP/IP | 7.5 | 0.0248 |  |
| [CVE-2023-36603](https://patchblox.com/security/data/cve/CVE-2023-36603.md) | High | Windows TCP/IP | 7.5 | 0.0248 |  |
| [CVE-2023-36434](https://patchblox.com/security/data/cve/CVE-2023-36434.md) | High | Windows IIS | 9.8 | 0.0227 |  |
| [CVE-2023-36596](https://patchblox.com/security/data/cve/CVE-2023-36596.md) | High | Windows Remote Procedure Call | 7.5 | 0.0211 |  |
| [CVE-2023-29348](https://patchblox.com/security/data/cve/CVE-2023-29348.md) | High | Windows RDP | 7.5 | 0.0208 |  |
| [CVE-2023-36567](https://patchblox.com/security/data/cve/CVE-2023-36567.md) | High | Windows Deployment Services | 7.5 | 0.0208 |  |
| [CVE-2023-36438](https://patchblox.com/security/data/cve/CVE-2023-36438.md) | High | Windows TCP/IP | 7.5 | 0.0203 |  |
| [CVE-2023-36723](https://patchblox.com/security/data/cve/CVE-2023-36723.md) | High | Windows Container Manager Service | 7.8 | 0.0196 |  |
| [CVE-2023-36577](https://patchblox.com/security/data/cve/CVE-2023-36577.md) | High | Microsoft WDAC OLE DB provider for SQL | 8.8 | 0.0177 |  |
| [CVE-2023-36710](https://patchblox.com/security/data/cve/CVE-2023-36710.md) | High | Microsoft Windows Media Foundation | 7.8 | 0.0093 |  |
| [CVE-2023-36436](https://patchblox.com/security/data/cve/CVE-2023-36436.md) | High | Windows HTML Platform | 7.8 | 0.0085 |  |
| [CVE-2023-36593](https://patchblox.com/security/data/cve/CVE-2023-36593.md) | High | Windows Message Queuing | 7.8 | 0.0082 |  |
| [CVE-2023-36578](https://patchblox.com/security/data/cve/CVE-2023-36578.md) | High | Windows Message Queuing | 7.3 | 0.0082 |  |
| [CVE-2023-36582](https://patchblox.com/security/data/cve/CVE-2023-36582.md) | High | Windows Message Queuing | 7.3 | 0.0082 |  |
| [CVE-2023-36583](https://patchblox.com/security/data/cve/CVE-2023-36583.md) | High | Windows Message Queuing | 7.3 | 0.0082 |  |
| [CVE-2023-36590](https://patchblox.com/security/data/cve/CVE-2023-36590.md) | High | Windows Message Queuing | 7.3 | 0.0082 |  |
| [CVE-2023-41766](https://patchblox.com/security/data/cve/CVE-2023-41766.md) | High | Client Server Run-time Subsystem (CSRSS) | 7.8 | 0.0082 |  |
| [CVE-2023-36598](https://patchblox.com/security/data/cve/CVE-2023-36598.md) | High | Microsoft WDAC ODBC Driver | 7.8 | 0.0081 |  |
| [CVE-2023-36704](https://patchblox.com/security/data/cve/CVE-2023-36704.md) | High | Windows Setup Files Cleanup | 7.8 | 0.0081 |  |
| [CVE-2023-36712](https://patchblox.com/security/data/cve/CVE-2023-36712.md) | High | Windows Kernel | 7.8 | 0.0081 |  |
| [CVE-2023-36570](https://patchblox.com/security/data/cve/CVE-2023-36570.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36571](https://patchblox.com/security/data/cve/CVE-2023-36571.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36572](https://patchblox.com/security/data/cve/CVE-2023-36572.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36573](https://patchblox.com/security/data/cve/CVE-2023-36573.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36574](https://patchblox.com/security/data/cve/CVE-2023-36574.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36575](https://patchblox.com/security/data/cve/CVE-2023-36575.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36589](https://patchblox.com/security/data/cve/CVE-2023-36589.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36591](https://patchblox.com/security/data/cve/CVE-2023-36591.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36592](https://patchblox.com/security/data/cve/CVE-2023-36592.md) | High | Windows Message Queuing | 7.3 | 0.0081 |  |
| [CVE-2023-36702](https://patchblox.com/security/data/cve/CVE-2023-36702.md) | High | Windows Microsoft DirectMusic | 7.8 | 0.0081 |  |
| [CVE-2023-36557](https://patchblox.com/security/data/cve/CVE-2023-36557.md) | High | Windows HTML Platform | 7.8 | 0.0080 |  |
| [CVE-2023-36711](https://patchblox.com/security/data/cve/CVE-2023-36711.md) | High | Windows Runtime C++ Template Library | 7.8 | 0.0063 |  |
| [CVE-2023-36701](https://patchblox.com/security/data/cve/CVE-2023-36701.md) | High | Windows Resilient File System (ReFS) | 7.8 | 0.0058 |  |
| [CVE-2023-36726](https://patchblox.com/security/data/cve/CVE-2023-36726.md) | High | Windows IKE Extension | 7.8 | 0.0058 |  |
| [CVE-2023-36729](https://patchblox.com/security/data/cve/CVE-2023-36729.md) | High | Windows Named Pipe File System | 7.8 | 0.0058 |  |
| [CVE-2023-36725](https://patchblox.com/security/data/cve/CVE-2023-36725.md) | High | Windows NT OS Kernel | 7.8 | 0.0050 |  |
| [CVE-2023-36902](https://patchblox.com/security/data/cve/CVE-2023-36902.md) | High | Windows Client/Server Runtime Subsystem | 7.0 | 0.0050 |  |
| [CVE-2023-36605](https://patchblox.com/security/data/cve/CVE-2023-36605.md) | High | Windows Named Pipe File System | 7.4 | 0.0048 |  |
| [CVE-2023-36721](https://patchblox.com/security/data/cve/CVE-2023-36721.md) | High | Windows Error Reporting | 7.0 | 0.0041 |  |
| [CVE-2023-36707](https://patchblox.com/security/data/cve/CVE-2023-36707.md) | Routine | Windows Deployment Services | 6.5 | 0.0271 |  |
| [CVE-2023-36706](https://patchblox.com/security/data/cve/CVE-2023-36706.md) | Routine | Windows Deployment Services | 6.5 | 0.0203 |  |
| [CVE-2023-36564](https://patchblox.com/security/data/cve/CVE-2023-36564.md) | Routine | Microsoft Windows Search Component | 6.5 | 0.0143 |  |
| [CVE-2023-36722](https://patchblox.com/security/data/cve/CVE-2023-36722.md) | Routine | Active Directory Domain Services | 4.4 | 0.0137 |  |
| [CVE-2023-36576](https://patchblox.com/security/data/cve/CVE-2023-36576.md) | Routine | Windows Kernel | 5.5 | 0.0087 |  |
| [CVE-2023-36717](https://patchblox.com/security/data/cve/CVE-2023-36717.md) | Routine | Windows TPM | 6.5 | 0.0070 |  |
| [CVE-2023-36724](https://patchblox.com/security/data/cve/CVE-2023-36724.md) | Routine | Windows Power Management Service | 5.5 | 0.0054 |  |
| [CVE-2023-36698](https://patchblox.com/security/data/cve/CVE-2023-36698.md) | Routine | Windows Kernel | 4.4 | 0.0047 |  |

---

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
