Product · Microsoft

System.Security.Cryptography.Xml

4 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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High 7.5

CVE-2026-96959

.NET Denial of Service Vulnerability

Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.

Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Microsoft .NET Framework 3.5 AND 4.8 Microsoft .NET Framework 3.5 AND 4.7.2 Ubuntu Alpine NuGet

Oct 13, 2026
High 7.5

CVE-2026-96958

.NET Denial of Service Vulnerability

Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Microsoft .NET Framework 3.5 AND 4.7.2 Microsoft .NET Framework 3.5 AND 4.8 Ubuntu Alpine NuGet

Oct 13, 2026
High 7.5

CVE-2026-96960

.NET Denial of Service Vulnerability

Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.

Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Microsoft .NET Framework 3.5 AND 4.8 Microsoft .NET Framework 3.5 AND 4.7.2 Ubuntu Alpine NuGet

Oct 13, 2026
High 7.4

CVE-2026-96222

Active Directory Federation Services (AD FS) Spoofing Vulnerability

Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows Ubuntu Alpine NuGet

Oct 13, 2026