# CVE-2026-114155: .NET time-of-check time-of-use race condition privilege escalation

Source: https://junglewise.ai/threats/cve-2026-114155-time-of-check-time-of-use-toctou-race-condition-in-net-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-114155 · Severity: high · CVSS 7.5 · Published 2026-11-10

.NET is a software development framework used to build applications across Windows, Linux, and cloud environments. A race condition in .NET allows an authorized local attacker to escalate their privileges on a system, potentially gaining higher-level access to sensitive data or system resources.

Technologies: [Microsoft .Net](https://junglewise.ai/threats/technologies/microsoft-net). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft), [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2026-114155 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114155 being exploited in the wild.

**How severe is CVE-2026-114155?** High severity, with a CVSS score of 7.5, published 10 November 2026.

**Which products and versions are affected?** Microsoft.DotNet.HotReload.Watch.Aspire (NuGet) >= 10.0.300, <= 10.0.303, ECOSYSTEM:introduced=10.0.300,fixed=10.0.404.

**Is there a fix for CVE-2026-114155?** Yes. Microsoft.DotNet.HotReload.Watch.Aspire (NuGet): upgrade to 10.0.404 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114155 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-114155?** Check whether you run Microsoft .Net or Microsoft.DotNet.HotReload.Watch.Aspire (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Microsoft.DotNet.HotReload.Watch.Aspire (NuGet): upgrade to 10.0.404 or later

  ```sh
  dotnet add package Microsoft.DotNet.HotReload.Watch.Aspire --version 10.0.404
  ```


## Technical details

A time-of-check time-of-use (TOCTOU) race condition exists in .NET that can be exploited by an authorized local attacker to escalate privileges. The vulnerability requires local access and existing user privileges. Successful exploitation results in privilege elevation on the affected system.

## Affected products

- Microsoft .NET

## Identifiers

- CVE-2026-114155
- GHSA-q7j6-px74-p2vw

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114155](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114155)

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