# CVE-2026-114151: Visual Studio Remote Code Execution Vulnerability

CVE-2026-114151 is fixed in 3 products on 1 platform, first by KB5135241, released November 10, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-114151
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0149
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Nov 10, 2026
- Weakness: Deserialization of Untrusted Data
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114151

## Description

<p>Deserialization of untrusted data in Visual Studio allows an unauthorized attacker to execute code over a network.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | .NET 10.0 installed on Windows |  | [KB5135241](https://patchblox.com/security/data/fix/microsoft/kb5135241.md) | Nov 10, 2026 |
| Microsoft | .NET 8.0 installed on Windows |  | [KB5135243](https://patchblox.com/security/data/fix/microsoft/kb5135243.md) | Nov 10, 2026 |
| Microsoft | .NET 9.0 installed on Windows |  | [KB5135242](https://patchblox.com/security/data/fix/microsoft/kb5135242.md) | Nov 10, 2026 |

---

Data as of 2026-11-11T13:47:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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.