CVE-2026-69806 .NET Elevation of Privilege Vulnerability

High 7.0 Published Updated

An authorized local attacker can exploit information exposure in .NET to elevate privileges, requiring a patch for affected runtimes.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-69806?

CVE-2026-69806 is a high-severity vulnerability in Microsoft .Net, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.

Weakness: CWE-94, CWE-200

Which versions are affected by CVE-2026-69806?

2 open source packages ship an affected version, including dotnet and dotnet-sdk. It affects 3 products.

PackageAffectedFixed in
dotnet BitnamiFrom 9.0.09.0.20, 10.0.12
dotnet-sdk BitnamiFrom 9.0.09.0.20, 10.0.12

Products include Microsoft .Net, Microsoft Visual Studio 2022, Microsoft Visual Studio 2026.

How do I fix CVE-2026-69806?

Upgrade dotnet to a fixed version for your release line: 9.0.20 or 10.0.12.

Is CVE-2026-69806 being exploited?

There is no known exploitation of CVE-2026-69806 in the wild and no public exploit code.

All Microsoft .Net vulnerabilities

Sources

Also known as BIT-dotnet-2026-69806, BIT-dotnet-sdk-2026-69806, GHSA-fg32-9f4f-8w3f, MINI-5f85-vjq3-4f7w, UBUNTU-CVE-2026-69806.

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