CVE-2026-96222: Microsoft .NET Framework 3.5 3.5.0 to before 2.0.50727.9188 AND 3.0.30729.9171; +21 more affected products

Affected technology

Microsoft .NET Framework 3.5 · 3.5.0 to before 2.0.50727.9188 AND 3.0.30729.9171
Microsoft

Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 · 3.0.0.0 to before 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0
Microsoft

Microsoft .NET Framework 3.5 AND 4.7.2 · 4.7.0 to before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0
Microsoft

Microsoft .NET Framework 3.5 AND 4.8 · 4.8.0 to before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0
Microsoft

Microsoft .NET Framework 3.5 AND 4.8.1 · 4.8.1 to before 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0
Microsoft

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 · 4.7.0 to before 4.7.4150.0
Microsoft

Microsoft .NET Framework 4.8 · 4.8.0 to before 4.8.4811.0
Microsoft

Microsoft .NET Framework 4.8.1 · 4.8.0.0 to before 4.8.9363.0
Microsoft

Microsoft Visual Studio 2022 version 17.14 · 17.14.0 to before 17.14.42
Microsoft

Microsoft Visual Studio 2026 version 18.10 · 18.10.0 to before 18.10.4
Microsoft

System.Security.Cryptography.Xml · 10.0.0 to before 8.0.5
Microsoft

Windows 10 Version 1607 · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows 10 Version 1809 · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows Server 2012 R2 · 6.3.9600.0 to before 6.3.9600.23470
Microsoft

Windows Server 2012 R2 (Server Core installation) · 6.3.9600.0 to before 6.3.9600.23470
Microsoft

Windows Server 2016 · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows Server 2016 (Server Core installation) · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows Server 2019 · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows Server 2019 (Server Core installation) · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows Server 2022 · 10.0.20348.0 to before 10.0.20348.5761
Microsoft

Windows Server 2025 · 10.0.26100.0 to before 10.0.26100.33650
Microsoft

Windows Server 2025 (Server Core installation) · 10.0.26100.0 to before 10.0.26100.33650
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthorized attacker can perform spoofing over a network. Vendor/CNA’s CVSS 3.1 assessment (base score 7.4/10) rates confidentiality and integrity impact as high; availability impact as none.