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dotnet9.0 vulnerabilities

Vulnerabilities published for dotnet9.0 in the last 30 days: 1. Listed in the KEV catalogue: 0.

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Vulnerabilities: 13

  1. RLSA-2026:86170

    Critical · CVSS 9.4Fix available

    Critical: .NET 9.0 security, bug fix, and enhancement update

    .NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.122 Runtime version: 9.0.21 Security Fix(es): * dotnet10.0: dotnet9.0: dotnet: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-58280) * dotnet10.0: dotnet8.0: dotnet9.0: dotnet: .NET Information Disclosure Vulnerability (CVE-2026-6682

    dotnet9.0Operating systems
    • Update to 0:9.0.122-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  2. RLSA-2026:68233

    High · CVSS 7Fix available

    Important: .NET 9.0 security, bug fix, and enhancement update

    .NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.121 Runtime version: 9.0.20 Security Fix(es): * dotnet10.0: dotnet9.0: dotnet8.0: .NET Information Disclosure Vulnerability (CVE-2026-58649) * dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability (CVE-2026-69806) Bug Fix(es) and En

    dotnet9.0Operating systems
    • Update to 0:9.0.121-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  3. RLSA-2026:54550

    High · CVSS 7.8Fix available

    Important: .NET 9.0 security, bug fix, and enhancement update

    .NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.120 Runtime version: 9.0.19 Security Fix(es): * .NET: .NET Core: .NET Security Feature Bypass Vulnerability (CVE-2026-62899) * .NET: .NET Information Disclosure Vulnerability (CVE-2026-62900) * .NET: .NET Denial of Service Vulnerability (CVE-2

    dotnet9.0Operating systems
    • Update to 0:9.0.120-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  4. RLSA-2026:41899

    High · CVSS 8.8Fix available

    Important: .NET 9.0 security, bug fix, and enhancement update

    .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 9.0.119 and .NET Runtime 9.0.18. Security Fix(es): * dotnet: SocketsHttpHandler Http2Connection - HTTP/2 SETTINGS/PING ACK flood causing OOM (CVE-2026-50651) * dotnet: .NET Core: Denial of Service via type confusion (CVE-2026-57108) * ASP.NET Core: ASP.NET Core: Denial of Service via uncontrolled resource allocation (CVE-2026-56170) * ASP.NET Core: ASP.NET Core: Privilege Escalatio

    dotnet9.0Operating systems
    • Update to 0:9.0.119-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  5. RLSA-2026:25113

    High · CVSS 7.5Fix available

    Important: .NET 9.0 security update

    .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 9.0.118 and .NET Runtime 9.0.17.Security Fix(es): * dotnet: .NET: Local file tampering via link following vulnerability (CVE-2026-45491) * dotnet: ASP.NET Core: Denial of Service via uncontrolled resource consumption (CVE-2026-45591) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(

    dotnet9.0Operating systems
    • Update to 0:9.0.118-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  6. RLSA-2026:21294

    High · CVSS 7.5Fix available

    Important: .NET 9.0 security update

    .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 9.0.117 and .NET Runtime 9.0.16.Security Fix(es): * dotnet: .NET: infinite loop allows an attacker to cause a denial of service (CVE-2026-42899) 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.

    dotnet9.0Operating systems
    • Update to 0:9.0.117-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  7. RLSA-2026:8475

    High · CVSS 7.5Fix available

    Important: .NET 9.0 security update

    .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 9.0.116 and .NET Runtime 9.0.15.Security Fix(es): * dotnet: .NET: Security Bypass and Denial of Service Vulnerability (CVE-2026-26171) * dotnet: .NET: Denial of Service via stack overflow (CVE-2026-32203) * dotnet: .NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform (CVE-2026-33116) * dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress pa

    dotnet9.0Operating systems
    • Update to 0:9.0.116-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  8. RLSA-2026:4443

    High · CVSS 7.5Fix available

    Important: .NET 9.0 security update

    .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 9.0.115 and .NET Runtime 9.0.14.Security Fix(es): * .net: .NET: Denial of Service via out-of-bounds read (CVE-2026-26127) * asp.net: ASP.NET Core: Denial of Service via uncontrolled resource allocation (CVE-2026-26130) 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 th

    dotnet9.0Operating systems
    • Update to 0:9.0.115-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  9. RLSA-2025:18150

    High · CVSS 8.5Fix available

    Important: .NET 9.0 security update

    .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, re

    dotnet9.0Operating systems
    • Update to 0:9.0.111-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  10. RLSA-2025:8815

    High · CVSS 7.5Fix available

    Important: .NET 9.0 security update

    .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 9.0.107 and .NET Runtime 9.0.6.Security Fix(es): * dotnet: .NET Remote Code Vulnerability (CVE-2025-30399) 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.

    dotnet9.0Operating systems
    • Update to 0:9.0.107-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  11. RLSA-2025:7571

    High · CVSS 8Fix available

    Important: .NET 9.0 security update

    .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 9.0.106 and .NET Runtime 9.0.5.Security Fix(es): * dotnet: .NET and Visual Studio Spoofing Vulnerability (CVE-2025-26646) 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.

    dotnet9.0Operating systems
    • Update to 0:9.0.106-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  12. RLSA-2025:2667

    High · CVSS 7.8Fix available

    Important: .NET 9.0 security, bug fix, and enhancement update

    .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 9.0.104 and .NET Runtime 9.0.3.Security Fix(es): * dotnet: Privilege Escalation Vulnerability in .NET SignInManager.RefreshSignInAsync Method (CVE-2025-24070) Bug Fix(es) and Enhancement(s): * dotnet: Privilege Escalation Vulnerability in .NET SignInManager.RefreshSignInAsync Method (BZ#2349733) For more details about the security issue(s), including the impact, a CVSS score, acknow

    dotnet9.0Operating systems
    • Update to 0:9.0.104-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  13. RLSA-2025:0382

    Not ratedFix available

    Important: .NET 9.0 security update

    .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 9.0.102 and .NET Runtime 9.0.1. Security Fix(es): * dotnet: .NET Remote Code Execution Vulnerability (CVE-2025-21171) * dotnet: .NET and Visual Studio Remote Code Execution Vulnerability (CVE-2025-21172) * dotnet: .NET Elevation of Privilege Vulnerability (CVE-2025-21173) * dotnet: .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability (CVE-2025-21176) For more d

    dotnet9.0Operating systems
    • Update to 0:9.0.102-1.el8_10
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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