# CVE-2025-55248: Microsoft Security Advisory : .NET Information Disclosure Vulnerability

Source: https://junglewise.ai/threats/cve-2025-55248-microsoft-security-advisory-net-information-disclosure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-10-15  
License: CC BY 4.0 with a link back

CVE-2025-55248 · Severity: low · CVSS 3.1 · Published 2025-10-15

Microsoft Security Advisory CVE-2025-55248: .NET Information Disclosure Vulnerability

Technologies: [Microsoft.NetCore.App.Runtime.linux-arm (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-arm), [Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-arm64), [Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-musl-arm), [Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-musl-arm64), [Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-musl-x64), [Microsoft.NetCore.App.Runtime.linux-x64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-linux-x64), [Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-osx-arm64), [Microsoft.NetCore.App.Runtime.osx-x64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-osx-x64), [Microsoft.NetCore.App.Runtime.win-arm (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-win-arm), [Microsoft.NetCore.App.Runtime.win-arm64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-win-arm64), [Microsoft.NetCore.App.Runtime.win-x64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-win-x64), [Microsoft.NetCore.App.Runtime.win-x86 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-netcore-app-runtime-win-x86). Vendors: [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2025-55248 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-55248 being exploited in the wild.

**How severe is CVE-2025-55248?** Low severity, with a CVSS score of 3.1, published 15 October 2025.

**Which products and versions are affected?** Microsoft.NetCore.App.Runtime.linux-arm (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10; Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10; Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10; Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10; and 8 more.

**Is there a fix for CVE-2025-55248?** Yes. Microsoft.NetCore.App.Runtime.linux-arm (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.linux-x64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.osx-x64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.win-arm (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.win-arm64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.win-x64 (NuGet): upgrade to 9.0.10 or later; Microsoft.NetCore.App.Runtime.win-x86 (NuGet): upgrade to 9.0.10 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-55248?** Check whether you run Microsoft.NetCore.App.Runtime.linux-arm (NuGet), Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet), Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) or one of the others listed 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.NetCore.App.Runtime.linux-arm (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-arm --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-arm64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-arm --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-arm64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-musl-x64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.linux-x64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.linux-x64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.osx-arm64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.osx-x64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.osx-x64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.win-arm (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.win-arm --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.win-arm64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.win-arm64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.win-x64 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.win-x64 --version 9.0.10
  ```

- Microsoft.NetCore.App.Runtime.win-x86 (NuGet): upgrade to 9.0.10 or later

  ```sh
  dotnet add package Microsoft.NetCore.App.Runtime.win-x86 --version 9.0.10
  ```


## Affected products

- Microsoft.NetCore.App.Runtime.linux-arm (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.linux-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.linux-musl-arm (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.linux-musl-x64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.linux-x64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.osx-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.osx-x64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.win-arm (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.win-x64 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10
- Microsoft.NetCore.App.Runtime.win-x86 (NuGet) ECOSYSTEM:introduced=9.0.0,fixed=9.0.10

## Identifiers

- CVE-2025-55248
- GHSA-gwq6-fmvp-qp68

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