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.NET Framework Denial of Service Vulnerability Affected products named by the advisory: Microsoft .NET Framework 4.8 on Windows Server 2016; Microsoft .NET Framework 4.8 on Windows Server 2012; Microsoft .NET Framework 4.8 on Windows Server 2012 R2; Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
What this means
In plain English
.NET Framework Denial of Service Vulnerability Affected products named by the advisory: Microsoft .NET Framework 4.8 on Windows Server 2016; Microsoft .NET Framework 4.8 on Windows Server 2012; Microsoft .NET Framework 4.8 on Windows Server 2012 R2; Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
Recommended action
Upgrade to a vendor-listed fixed release: KB5104034 (build 10.0.6), KB5104033 (build 9.0.18), KB5104032 (build 8.0.29), KB5087065 (build 4.8.4803.0), KB5087067 (build 4.8.4803.0), KB5087069 (build 4.8.4803.0), KB5087066 (build 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0), KB5087068 (build 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0). Vendor-listed mitigations/workarounds: Install the applicable security update for your platform: KB5104034, KB5104033, KB5104032, KB5087065, KB5087067, KB5087069 (see the Microsoft Update Catalog).
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Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
Install the applicable security update for your platform: KB5104034, KB5104033, KB5104032, KB5087065, KB5087067, KB5087069 (see the Microsoft Update Catalog).
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Official documentation
Direct download of the KB5104033 security update named in the MSRC remediation data for this CVE.