The Microsoft .NET Framework installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny     service over a network. (CVE-2026-47302)

  - Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a     network. (CVE-2026-50527)

  - Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.
    (CVE-2026-50646)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:58568 advisory.

    .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: 8.0.130     Runtime version: 8.0.30

    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 Escalation via Incorrect Authentication Algorithm (CVE-2026-47300)

    * ASP.NET Core: ASP.NET Core: Privilege Elevation via Authentication Bypass (CVE-2026-47303)

    * dotnet: .NET Security Feature Bypass Vulnerability (CVE-2026-47304)

    * dotnet: .NET: Denial of Service vulnerability due to uncontrolled resource allocation (CVE-2026-47302)

    * dotnet: .NET Framework: Privilege escalation via code injection (CVE-2026-50650)

    * dotnet: .NET: Security feature bypass due to incorrect authorization (CVE-2026-50528)

    * dotnet: .NET: Local code execution via deserialization of untrusted data (CVE-2026-50649)

    * dotnet: .NET: Local tampering via improper link resolution (CVE-2026-50526)

    * dotnet: .NET Framework: Local Code Execution via Protection Mechanism Failure (CVE-2026-50646)

    * dotnet: .NET: Denial of Service due to uncontrolled resource allocation (CVE-2026-50525)

    * dotnet: .NET Framework: Denial of Service via network-based buffer overflow (CVE-2026-50527)

    * dotnet: .NET Framework: Remote Denial of Service due to uncontrolled resource allocation     (CVE-2026-50648)

    * .NET: .NET: Network Spoofing Vulnerability (CVE-2026-50659)

    * dotnet: .NET Framework: Denial of Service via improper input validation (CVE-2026-50524)

    * .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-2026-62901)

    * .NET: .NET Elevation of Privilege Vulnerability (CVE-2026-62909)

    Bug Fix(es) and Enhancement(s):

    * dotnet8.0: Reduce time to detect hanging builds during .NET RPM builds (c9s) [rhel-9.4.z]     (JIRA:RHEL-192331)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
329339	Security Updates for Microsoft .NET Framework (July 2026)	Nessus	Windows : Microsoft Bulletins	2026/7/24	2026/8/5	critical
339082	RHEL 9 : .NET 8.0 (RHSA-2026:58568)	Nessus	Red Hat Local Security Checks	2026/8/24	2026/8/24	critical

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