# KB4503286: June 2019 cumulative update for Windows 10 1803

KB4503286, released June 11, 2019, fixes 64 CVEs across 10 products. 2 of them are being exploited (CVE-2019-1064); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4503286
- Platform: Microsoft
- Released: Jun 11, 2019
- Priority: Patch now (Closes CVE-2019-1064, exploited (CISA KEV, ransomware))
- CVEs: 64, exploited: 2, on CISA KEV: 2
- Vendor advisory: https://support.microsoft.com/help/4503286

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1803-for-32-bit-systems.md) |  | 17134.829 |
| [Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1803-for-arm64-based-systems.md) |  | 17134.829 |
| [Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1803-for-x64-based-systems.md) |  | 17134.829 |
| [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1803-for-32-bit-systems.md) |  | 17134.829 |
| [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1803-for-arm64-based-systems.md) |  | 17134.829 |
| [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1803-for-x64-based-systems.md) |  | 17134.829 |
| [Windows 10 Version 1803 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1803-for-32-bit-systems.md) |  | 17134.829 |
| [Windows 10 Version 1803 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1803-for-arm64-based-systems.md) |  | 17134.829 |
| [Windows 10 Version 1803 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1803-for-x64-based-systems.md) |  | 17134.829 |
| [Windows Server, version 1803  (Server Core Installation)](https://patchblox.com/security/data/product/microsoft/windows-server-version-1803-server-core-installation.md) |  | 17134.829 |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-1064](https://patchblox.com/security/data/cve/CVE-2019-1064.md) | Patch now | Microsoft Windows | 7.8 | 0.0689 | CISA KEV, Ransomware, Disclosed |
| [CVE-2019-1069](https://patchblox.com/security/data/cve/CVE-2019-1069.md) | Patch now | Microsoft Windows | 7.8 | 0.0617 | CISA KEV, Ransomware, Disclosed |
| [CVE-2019-0888](https://patchblox.com/security/data/cve/CVE-2019-0888.md) | Urgent | Microsoft Windows | 8.8 | 0.1113 |  |
| [CVE-2019-0988](https://patchblox.com/security/data/cve/CVE-2019-0988.md) | Urgent | Microsoft Scripting Engine | 7.5 | 0.0574 | More likely |
| [CVE-2019-0920](https://patchblox.com/security/data/cve/CVE-2019-0920.md) | Urgent | Microsoft Scripting Engine | 7.5 | 0.0552 | More likely |
| [CVE-2019-0990](https://patchblox.com/security/data/cve/CVE-2019-0990.md) | Urgent | Microsoft Scripting Engine | 6.5 | 0.0541 | More likely |
| [CVE-2019-1023](https://patchblox.com/security/data/cve/CVE-2019-1023.md) | Urgent | Microsoft Scripting Engine | 6.5 | 0.0541 | More likely |
| [CVE-2019-1025](https://patchblox.com/security/data/cve/CVE-2019-1025.md) | Urgent | Microsoft Windows | 6.5 | 0.0539 | More likely |
| [CVE-2019-0722](https://patchblox.com/security/data/cve/CVE-2019-0722.md) | Urgent | Microsoft Windows | 8.8 | 0.0472 |  |
| [CVE-2019-1051](https://patchblox.com/security/data/cve/CVE-2019-1051.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0412 | More likely |
| [CVE-2019-0959](https://patchblox.com/security/data/cve/CVE-2019-0959.md) | Urgent | Microsoft Windows | 7.0 | 0.0354 | More likely |
| [CVE-2019-1005](https://patchblox.com/security/data/cve/CVE-2019-1005.md) | Urgent | VBScript | 6.4 | 0.0335 | More likely |
| [CVE-2019-1055](https://patchblox.com/security/data/cve/CVE-2019-1055.md) | Urgent | Microsoft Scripting Engine | 6.4 | 0.0335 | More likely |
| [CVE-2019-1038](https://patchblox.com/security/data/cve/CVE-2019-1038.md) | Urgent | Microsoft Browsers | 6.4 | 0.0332 | More likely |
| [CVE-2019-1080](https://patchblox.com/security/data/cve/CVE-2019-1080.md) | Urgent | Microsoft Scripting Engine | 6.4 | 0.0332 | More likely |
| [CVE-2019-0992](https://patchblox.com/security/data/cve/CVE-2019-0992.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0256 | More likely |
| [CVE-2019-0991](https://patchblox.com/security/data/cve/CVE-2019-0991.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0247 | More likely |
| [CVE-2019-0993](https://patchblox.com/security/data/cve/CVE-2019-0993.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0247 | More likely |
| [CVE-2019-0989](https://patchblox.com/security/data/cve/CVE-2019-0989.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0240 | More likely |
| [CVE-2019-1003](https://patchblox.com/security/data/cve/CVE-2019-1003.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0240 | More likely |
| [CVE-2019-1024](https://patchblox.com/security/data/cve/CVE-2019-1024.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0240 | More likely |
| [CVE-2019-1052](https://patchblox.com/security/data/cve/CVE-2019-1052.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0240 | More likely |
| [CVE-2019-0943](https://patchblox.com/security/data/cve/CVE-2019-0943.md) | Urgent | Microsoft Windows | 7.8 | 0.0237 | More likely |
| [CVE-2019-1002](https://patchblox.com/security/data/cve/CVE-2019-1002.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0235 | More likely |
| [CVE-2019-1081](https://patchblox.com/security/data/cve/CVE-2019-1081.md) | Urgent | Microsoft Browsers | 4.2 | 0.0234 | More likely |
| [CVE-2019-0986](https://patchblox.com/security/data/cve/CVE-2019-0986.md) | Urgent | Windows Shell | 6.3 | 0.0207 | More likely |
| [CVE-2019-1054](https://patchblox.com/security/data/cve/CVE-2019-1054.md) | Urgent | Microsoft Edge | 5.0 | 0.0160 | More likely |
| [CVE-2019-0620](https://patchblox.com/security/data/cve/CVE-2019-0620.md) | Urgent | Windows Hyper-V | 7.6 | 0.0144 |  |
| [CVE-2019-1053](https://patchblox.com/security/data/cve/CVE-2019-1053.md) | Urgent | Windows Shell | 6.3 | 0.0132 | Disclosed |
| [CVE-2019-1065](https://patchblox.com/security/data/cve/CVE-2019-1065.md) | Urgent | Windows Kernel | 7.8 | 0.0117 | More likely |
| [CVE-2019-0983](https://patchblox.com/security/data/cve/CVE-2019-0983.md) | Urgent | Microsoft Windows | 7.8 | 0.0107 | More likely |
| [CVE-2019-0998](https://patchblox.com/security/data/cve/CVE-2019-0998.md) | Urgent | Microsoft Windows | 7.8 | 0.0107 | More likely |
| [CVE-2019-1041](https://patchblox.com/security/data/cve/CVE-2019-1041.md) | Urgent | Windows Kernel | 7.0 | 0.0102 | More likely |
| [CVE-2019-0984](https://patchblox.com/security/data/cve/CVE-2019-0984.md) | Urgent | Microsoft Windows | 7.0 | 0.0090 | More likely |
| [CVE-2019-1017](https://patchblox.com/security/data/cve/CVE-2019-1017.md) | Urgent | Windows Kernel | 7.0 | 0.0090 | More likely |
| [CVE-2019-1019](https://patchblox.com/security/data/cve/CVE-2019-1019.md) | High | Windows NTLM | 8.5 | 0.1512 |  |
| [CVE-2019-0906](https://patchblox.com/security/data/cve/CVE-2019-0906.md) | High | Microsoft JET Database Engine | 7.8 | 0.0571 |  |
| [CVE-2019-0908](https://patchblox.com/security/data/cve/CVE-2019-0908.md) | High | Microsoft JET Database Engine | 7.8 | 0.0456 |  |
| [CVE-2019-0904](https://patchblox.com/security/data/cve/CVE-2019-0904.md) | High | Microsoft JET Database Engine | 7.8 | 0.0407 |  |
| [CVE-2019-0905](https://patchblox.com/security/data/cve/CVE-2019-0905.md) | High | Microsoft JET Database Engine | 7.8 | 0.0407 |  |
| [CVE-2019-0907](https://patchblox.com/security/data/cve/CVE-2019-0907.md) | High | Microsoft JET Database Engine | 7.8 | 0.0407 |  |
| [CVE-2019-0974](https://patchblox.com/security/data/cve/CVE-2019-0974.md) | High | Microsoft JET Database Engine | 7.8 | 0.0407 |  |
| [CVE-2019-0909](https://patchblox.com/security/data/cve/CVE-2019-0909.md) | High | Microsoft JET Database Engine | 7.8 | 0.0360 |  |
| [CVE-2019-0941](https://patchblox.com/security/data/cve/CVE-2019-0941.md) | High | Windows IIS | 7.5 | 0.0304 |  |
| [CVE-2019-0973](https://patchblox.com/security/data/cve/CVE-2019-0973.md) | High | Windows Installer | 7.8 | 0.0106 | Disclosed |
| [CVE-2019-1014](https://patchblox.com/security/data/cve/CVE-2019-1014.md) | High | Windows Kernel | 7.0 | 0.0090 |  |
| [CVE-2019-1018](https://patchblox.com/security/data/cve/CVE-2019-1018.md) | High | Microsoft Graphics Component | 7.0 | 0.0090 |  |
| [CVE-2019-1021](https://patchblox.com/security/data/cve/CVE-2019-1021.md) | High | Windows Media | 7.8 | 0.0088 |  |
| [CVE-2019-1026](https://patchblox.com/security/data/cve/CVE-2019-1026.md) | High | Windows Media | 7.8 | 0.0088 |  |
| [CVE-2019-1027](https://patchblox.com/security/data/cve/CVE-2019-1027.md) | High | Windows Media | 7.8 | 0.0088 |  |
| [CVE-2019-1028](https://patchblox.com/security/data/cve/CVE-2019-1028.md) | High | Windows Media | 7.8 | 0.0088 |  |
| [CVE-2019-1007](https://patchblox.com/security/data/cve/CVE-2019-1007.md) | High | Windows Media | 7.8 | 0.0077 |  |
| [CVE-2019-1040](https://patchblox.com/security/data/cve/CVE-2019-1040.md) | Routine | Windows Authentication Methods | 5.3 | 0.4804 |  |
| [CVE-2019-0948](https://patchblox.com/security/data/cve/CVE-2019-0948.md) | Routine | Microsoft Windows | 4.7 | 0.1267 |  |
| [CVE-2019-0972](https://patchblox.com/security/data/cve/CVE-2019-0972.md) | Routine | Kerberos | 6.5 | 0.0579 |  |
| [CVE-2019-1010](https://patchblox.com/security/data/cve/CVE-2019-1010.md) | Routine | Microsoft Graphics Component | 4.7 | 0.0431 |  |
| [CVE-2019-1012](https://patchblox.com/security/data/cve/CVE-2019-1012.md) | Routine | Microsoft Graphics Component | 4.7 | 0.0431 |  |
| [CVE-2019-1046](https://patchblox.com/security/data/cve/CVE-2019-1046.md) | Routine | Microsoft Graphics Component | 4.7 | 0.0431 |  |
| [CVE-2019-1050](https://patchblox.com/security/data/cve/CVE-2019-1050.md) | Routine | Microsoft Graphics Component | 4.7 | 0.0431 |  |
| [CVE-2019-1043](https://patchblox.com/security/data/cve/CVE-2019-1043.md) | Routine | Microsoft Windows | 6.4 | 0.0303 |  |
| [CVE-2019-0710](https://patchblox.com/security/data/cve/CVE-2019-0710.md) | Routine | Microsoft Windows | 6.8 | 0.0188 |  |
| [CVE-2019-0711](https://patchblox.com/security/data/cve/CVE-2019-0711.md) | Routine | Microsoft Windows | 6.8 | 0.0188 |  |
| [CVE-2019-0713](https://patchblox.com/security/data/cve/CVE-2019-0713.md) | Routine | Microsoft Windows | 6.8 | 0.0188 |  |
| [CVE-2019-1039](https://patchblox.com/security/data/cve/CVE-2019-1039.md) | Routine | Windows Kernel | 5.5 | 0.0135 |  |

---

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

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.