# KB4495616: May 2019 security update

KB4495616, released May 14, 2019, fixes 4 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4495616
- Platform: Microsoft
- Released: May 14, 2019
- Priority: High (Closes CVE-2019-0820, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4495616

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.8-on-windows-10-version-1803-for-32-bit-systems.md) |  |  |
| [Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.8-on-windows-10-version-1803-for-x64-based-systems.md) |  |  |
| [Microsoft .NET Framework 4.8 on Windows Server, version 1803  (Server Core Installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.8-on-windows-server-version-1803-server-core-installation.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-0820](https://patchblox.com/security/data/cve/CVE-2019-0820.md) | High | .NET Framework | 7.5 | 0.0572 |  |
| [CVE-2019-0980](https://patchblox.com/security/data/cve/CVE-2019-0980.md) | High | .NET Core | 7.5 | 0.0498 |  |
| [CVE-2019-0981](https://patchblox.com/security/data/cve/CVE-2019-0981.md) | High | .NET Core | 7.5 | 0.0498 |  |
| [CVE-2019-0864](https://patchblox.com/security/data/cve/CVE-2019-0864.md) | High | .NET Framework | n/a | 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.