May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5088860)

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PT-2026-40187

Name of the Vulnerable Software and Affected Versions .NET affected versions not specified Description Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally...

May 12, 2026-KB5088863 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

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ROS-20260508-73-0009

A vulnerability in the .NET software platform is related to incorrect handling of a missing special element. Exploitation of the vulnerability could allow an attacker acting remotely to conduct spoofing attacks...

PT-2026-38466

Loop with unreachable exit condition 'infinite loop' in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network...

PT-2026-38464

Loop with unreachable exit condition 'infinite loop' in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network...

PT-2026-38463

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network...

dotnet: .NET: Security Bypass and Denial of Service Vulnerability

A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service DoS, making the service unavailable, and a bypass of security features...

dotnet: .NET: Denial of Service via stack overflow

A flaw was found in .NET. A remote attacker could exploit a stack overflow vulnerability during encrypted key nested decryption, leading to a Denial of Service DoS. This could make the affected system unavailable to legitimate users...

dotnet: .NET: Security Bypass and Denial of Service Vulnerability

A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service DoS, making the service unavailable, and a bypass of security features...

.net: .NET: Denial of Service via out-of-bounds read

A flaw was found in .NET. An unauthorized attacker can exploit an out-of-bounds read vulnerability over a network, leading to a Denial of Service DoS. This can prevent legitimate users from accessing the affected service...

.net: .NET: Denial of Service via out-of-bounds read

A flaw was found in .NET. An unauthorized attacker can exploit an out-of-bounds read vulnerability over a network, leading to a Denial of Service DoS. This can prevent legitimate users from accessing the affected service...

RLSA-2026:8471 Important: .NET 10.0 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 10.0.106 and .NET Runtime...

dotnet: .NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform

A flaw was found in .NET. A remote attacker could exploit this vulnerability by crafting a malicious XML document that triggers an infinite recursion within the XmlDecryptionTransform component. This could lead to a Denial of Service DoS, making the affected system unresponsive...

dotnet: .NET: Denial of Service via stack overflow

A flaw was found in .NET. A remote attacker could exploit a stack overflow vulnerability during encrypted key nested decryption, leading to a Denial of Service DoS. This could make the affected system unavailable to legitimate users...

dotnet: .NET: Security Bypass and Denial of Service Vulnerability

A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service DoS, making the service unavailable, and a bypass of security features...

dotnet: .NET: Security Bypass and Denial of Service Vulnerability

A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service DoS, making the service unavailable, and a bypass of security features...

dotnet: .NET: Denial of Service via stack overflow

A flaw was found in .NET. A remote attacker could exploit a stack overflow vulnerability during encrypted key nested decryption, leading to a Denial of Service DoS. This could make the affected system unavailable to legitimate users...

dotnet: .NET: Security Bypass and Denial of Service Vulnerability

A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service DoS, making the service unavailable, and a bypass of security features...

dotnet: .NET: Denial of Service via stack overflow

A flaw was found in .NET. A remote attacker could exploit a stack overflow vulnerability during encrypted key nested decryption, leading to a Denial of Service DoS. This could make the affected system unavailable to legitimate users...