# KB5029688: August 2023 security update

KB5029688, released August 8, 2023, fixes 4 CVEs in .NET 6.0. One of them is being exploited (CVE-2023-38180); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb5029688
- Platform: Microsoft
- Released: Aug 8, 2023
- Priority: Patch now (Closes CVE-2023-38180, exploited (CISA KEV))
- CVEs: 4, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://support.microsoft.com/help/5029688

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [.NET 6.0](https://patchblox.com/security/data/product/microsoft/net-6.0.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-38180](https://patchblox.com/security/data/cve/CVE-2023-38180.md) | Patch now | ASP.NET | 7.8 | 0.1413 | CISA KEV |
| [CVE-2023-38178](https://patchblox.com/security/data/cve/CVE-2023-38178.md) | High | .NET Core | 7.5 | 0.0259 |  |
| [CVE-2023-35390](https://patchblox.com/security/data/cve/CVE-2023-35390.md) | High | .NET Core | 7.8 | 0.0208 |  |
| [CVE-2023-35391](https://patchblox.com/security/data/cve/CVE-2023-35391.md) | Routine | ASP.NET and Visual Studio | 6.2 | 0.0190 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo