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Advisory severityHigh7.8Microsoft Server

High [CVE-2026-65810] .NET Framework Elevation of Privilege Vulnerability

This high-severity Microsoft Server advisory covers CVE-2026-65810 affecting Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-65810 Source published

VulniPulse record published

CVE-2026-65810
Affected products & platforms
Microsoft ServerWindows Server
Open source advisory

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Summary

.NET Framework Elevation of Privilege 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 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • KB5120711 (build 4.8.9344.0)
  • KB5120747 (build 2.0.50727.9183 & 3.0.30729.9169)
  • KB5120702 (build 4.8.4805.0)
  • KB5120704 (build 4.8.4805.0)
  • KB5120706 (build 4.8.4805.0)
  • KB5120703 (build 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0)
  • KB5120705 (build 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4805.0)
  • KB5120701 (build 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4805.0)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Install the applicable security update for your platform: KB5120711, KB5120747, KB5120702, KB5120704, KB5120706, KB5120703 (see the Microsoft Update Catalog).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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