# KB5120747: August 2026 security update

KB5120747, released August 11, 2026, fixes 5 CVEs across 2 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/kb5120747
- Platform: Microsoft
- Released: Aug 11, 2026
- Priority: High (Closes CVE-2026-62872, high severity)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5120747

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-11-version-26h1-for-arm64-based-systems.md) |  |  |
| [Microsoft .NET Framework 3.5 on Windows 11 version 26H1 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-11-version-26h1-for-x64-based-systems.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-62872](https://patchblox.com/security/data/cve/CVE-2026-62872.md) | High | .NET Framework | 8.8 | 0.0078 |  |
| [CVE-2026-62886](https://patchblox.com/security/data/cve/CVE-2026-62886.md) | High | .NET | 7.8 | 0.0047 |  |
| [CVE-2026-65810](https://patchblox.com/security/data/cve/CVE-2026-65810.md) | High | .NET Framework | 7.8 | 0.0040 |  |
| [CVE-2026-62897](https://patchblox.com/security/data/cve/CVE-2026-62897.md) | High | .NET Framework | 7.0 | 0.0037 |  |
| [CVE-2026-70354](https://patchblox.com/security/data/cve/CVE-2026-70354.md) | High | .NET | 7.8 | 0.0036 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo