CVE-2025-24043 WinDbg Remote Code Execution Vulnerability

High 7.5 Published Updated

An authorized attacker can execute arbitrary code over the network due to improper cryptographic signature verification in WinDbg.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-24043?

CVE-2025-24043 is a high-severity code injection vulnerability in Microsoft WinDbg, published on 11 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper verification of cryptographic signature in .NET allows an authorized attacker to execute code over a network.

Weakness: CWE-347

Which versions are affected by CVE-2025-24043?

6 open source packages ship an affected version, including dotnet-debugger-extensions, dotnet-dump and dotnet-sos. It affects 1 product.

PackageAffectedFixed in
dotnet-debugger-extensions NuGetAll versions9.0.607601
dotnet-debugger-extensions NuGetAll versions9.0.607601
dotnet-dump NuGetAll versions9.0.607501
dotnet-dump NuGetAll versions9.0.607501
dotnet-sos NuGetAll versions9.0.607501
dotnet-sos NuGetAll versions9.0.607501

Products include Microsoft Windbg.

How do I fix CVE-2025-24043?

Upgrade dotnet-debugger-extensions to 9.0.607601 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2025-24043 being exploited?

There is no known exploitation of CVE-2025-24043 in the wild and no public exploit code.

Sources

Also known as GHSA-hpw7-8qpc-34p3.

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