Summary
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 9.0.111 and .NET Runtime 9.0.10.Security Fix(es):
* dotnet: .NET Information Disclosure Vulnerability (CVE-2025-55248)
* dotnet: .NET Security Feature Bypass Vulnerability (CVE-2025-55315)
* dotnet: .NET Denial of Service Vulnerability (CVE-2025-55247)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 16
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | aspnetcore-runtime-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | aspnetcore-runtime-dbg-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | aspnetcore-targeting-pack-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | dotnet-apphost-pack-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-host | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-hostfxr-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-runtime-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-runtime-dbg-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-sdk-9.0 | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | dotnet-sdk-9.0-source-built-artifacts | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | dotnet-sdk-aot-9.0 | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | dotnet-sdk-dbg-9.0 | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | dotnet-targeting-pack-9.0 | 9.0.10-1.el8_10 |
| AlmaLinux · 8 | dotnet-templates-9.0 | 9.0.111-1.el8_10 |
| AlmaLinux · 8 | netstandard-targeting-pack-2.1 | 9.0.111-1.el8_10 |
Vulnerabilities 3
-
Critical 9.9
ASP.NET Security Feature Bypass Vulnerability
Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.
-
High 7.3
.NET Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
-
Medium 4.8
.NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability
Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.
References
-
report
https://access.redhat.com/security/cve/CVE-2025-55247
-
report
https://access.redhat.com/security/cve/CVE-2025-55248
-
report
https://access.redhat.com/security/cve/CVE-2025-55315
-
report
https://bugzilla.redhat.com/2403083
-
report
https://bugzilla.redhat.com/2403085
-
report
https://bugzilla.redhat.com/2403086
-
advisory
https://errata.almalinux.org/8/ALSA-2025-18150.html