CVE-2026-96237 .NET Remote Code Execution Vulnerability
An unauthorized attacker can execute arbitrary code over the network due to inclusion of functionality from an untrusted control sphere in .NET.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-96237?
CVE-2026-96237 is a high-severity code injection vulnerability in Microsoft .NET 10.0 runtime, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
Weakness: CWE-829
Which versions are affected by CVE-2026-96237?
How do I fix CVE-2026-96237?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-96237 being exploited?
There is no known exploitation of CVE-2026-96237 in the wild and no public exploit code.
Sources
Also known as UBUNTU-CVE-2026-96237.