# KB5087065: May 2026 security update

KB5087065, released May 18, 2026, fixes 2 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/microsoft/kb5087065
- Platform: Microsoft
- Released: May 18, 2026
- Priority: High (Closes CVE-2026-35433, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5087065

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.8-on-windows-10-version-1607-for-x64-based-systems.md) |  |  |
| [Microsoft .NET Framework 4.8 on Windows Server 2016](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.8-on-windows-server-2016.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-35433](https://patchblox.com/security/data/cve/CVE-2026-35433.md) | High | .NET | 7.3 | 0.0077 |  |
| [CVE-2026-32177](https://patchblox.com/security/data/cve/CVE-2026-32177.md) | High | .NET | 7.3 | 0.0064 |  |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.