Vulnerability · Published Oct 14, 2025 · Assigned by microsoft
CVE-2025-55248.NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability
Medium 4.8
In plain English
A medium-severity security flaw in Microsoft .NET Framework 2.0 Service Pack 2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.7%top 45.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | aspnetcore-runtime-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | aspnetcore-runtime-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | aspnetcore-runtime-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | aspnetcore-runtime-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | aspnetcore-runtime-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | aspnetcore-runtime-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | aspnetcore-targeting-pack-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | aspnetcore-targeting-pack-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | aspnetcore-targeting-pack-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | aspnetcore-targeting-pack-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | aspnetcore-targeting-pack-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | aspnetcore-targeting-pack-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:8 | dotnet | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:10 | dotnet-apphost-pack-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-apphost-pack-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-apphost-pack-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-apphost-pack-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-apphost-pack-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-apphost-pack-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-host | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-host | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-host | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-hostfxr-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-hostfxr-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-hostfxr-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-hostfxr-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-hostfxr-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-hostfxr-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-runtime-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-runtime-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-runtime-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-runtime-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-runtime-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-runtime-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-runtime-dbg-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-runtime-dbg-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-runtime-dbg-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-runtime-dbg-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-runtime-dbg-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-runtime-dbg-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-sdk-8.0 | 8.0.121-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-sdk-8.0 | 8.0.121-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-sdk-8.0 | 8.0.121-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-sdk-8.0-source-built-artifacts | 8.0.121-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-sdk-8.0-source-built-artifacts | 8.0.121-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-sdk-8.0-source-built-artifacts | 8.0.121-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-sdk-9.0 | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-sdk-9.0 | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-sdk-9.0 | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-sdk-9.0-source-built-artifacts | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-sdk-9.0-source-built-artifacts | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-sdk-9.0-source-built-artifacts | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-sdk-aot-9.0 | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-sdk-aot-9.0 | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-sdk-aot-9.0 | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-sdk-dbg-8.0 | 8.0.121-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-sdk-dbg-8.0 | 8.0.121-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-sdk-dbg-8.0 | 8.0.121-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-sdk-dbg-9.0 | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-sdk-dbg-9.0 | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-sdk-dbg-9.0 | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-targeting-pack-8.0 | 8.0.21-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-targeting-pack-8.0 | 8.0.21-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-targeting-pack-8.0 | 8.0.21-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-targeting-pack-9.0 | 9.0.10-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-targeting-pack-9.0 | 9.0.10-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-targeting-pack-9.0 | 9.0.10-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | dotnet-templates-8.0 | 8.0.121-1.el10_0 | ALSA-2025:18152 |
| AlmaLinux:8 | dotnet-templates-8.0 | 8.0.121-1.el8_10 | ALSA-2025:18148 |
| AlmaLinux:9 | dotnet-templates-8.0 | 8.0.121-1.el9_6 | ALSA-2025:18149 |
| AlmaLinux:10 | dotnet-templates-9.0 | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | dotnet-templates-9.0 | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | dotnet-templates-9.0 | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| AlmaLinux:10 | netstandard-targeting-pack-2.1 | 9.0.111-1.el10_0 | ALSA-2025:18153 |
| AlmaLinux:8 | netstandard-targeting-pack-2.1 | 9.0.111-1.el8_10 | ALSA-2025:18150 |
| AlmaLinux:9 | netstandard-targeting-pack-2.1 | 9.0.111-1.el9_6 | ALSA-2025:18151 |
| Alpine:v3.20 | dotnet8-runtime | 8.0.21-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.21 | dotnet8-runtime | 8.0.21-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.22 | dotnet8-runtime | 8.0.21-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.23 | dotnet8-runtime | 8.0.21-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.24 | dotnet8-runtime | 8.0.21-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.21 | dotnet9-runtime | 9.0.10-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.22 | dotnet9-runtime | 9.0.10-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.23 | dotnet9-runtime | 9.0.10-r0 | ALPINE-CVE-2025-55248 |
| Alpine:v3.24 | dotnet9-runtime | 9.0.10-r0 | ALPINE-CVE-2025-55248 |
| NuGet | microsoft.netcore.app.runtime.linux-arm | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-arm | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-arm64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-arm64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-arm64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-x64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-musl-x64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-x64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.linux-x64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.osx-arm64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.osx-arm64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.osx-x64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.osx-x64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-arm | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-arm | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 9.0.10 | GHSA-gwq6-fmvp-qp68 |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 8.0.21 | GHSA-gwq6-fmvp-qp68 |
| Rocky Linux:10 | dotnet8.0 | 0:8.0.121-1.el10_0 | RLSA-2025:18152 |
| Rocky Linux:8 | dotnet8.0 | 0:8.0.121-1.el8_10 | RLSA-2025:18148 |
| Rocky Linux:9 | dotnet8.0 | 0:8.0.121-1.el9_6 | RLSA-2025:18149 |
| Rocky Linux:10 | dotnet9.0 | 0:9.0.111-1.el10_0 | RLSA-2025:18153 |
| Rocky Linux:8 | dotnet9.0 | 0:9.0.111-1.el8_10 | RLSA-2025:18150 |
| Rocky Linux:9 | dotnet9.0 | 0:9.0.111-1.el9_6 | RLSA-2025:18151 |
| Ubuntu:25.10 | dotnet10 | 10.0.100-10.0.0~rc2-0ubuntu1~25.10.2 | USN-7822-1 |
| Ubuntu:22.04:LTS | dotnet6 | no fix listed | UBUNTU-CVE-2025-55248 |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2025-55248 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.121-8.0.21-0ubuntu1~22.04.1 | USN-7822-1 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.121-8.0.21-0ubuntu1~22.04.1 | UBUNTU-CVE-2025-55248 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.121-8.0.21-0ubuntu1~24.04.1 | USN-7822-1 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.121-8.0.21-0ubuntu1~24.04.1 | UBUNTU-CVE-2025-55248 |
| Ubuntu:25.10 | dotnet8 | 8.0.121-8.0.21-0ubuntu1~25.10.1 | USN-7822-1 |
| Ubuntu:25.10 | dotnet8 | 8.0.121-8.0.21-0ubuntu1~25.10.1 | UBUNTU-CVE-2025-55248 |
| Ubuntu:25.10 | dotnet9 | 9.0.111-9.0.10-0ubuntu1~25.10.1 | USN-7822-1 |
| Ubuntu:25.10 | dotnet9 | 9.0.111-9.0.10-0ubuntu1~25.10.1 | UBUNTU-CVE-2025-55248 |
Affected products (as reported)
Weakness: CWE-326 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- .NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability vendor-advisory, patch