Inclusion of Functionality from Untrusted Control Sphere in Microsoft products - CVE-2026-96237

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to inclusion of functionality from an untrusted control sphere in .NET when incorporating functionality from an untrusted source. A remote attacker can exploit this untrusted functionality over a network to execute arbitrary code.

Successful exploitation requires additional actions to prepare the target environment and user interaction.

Affected software

How to mitigate CVE-2026-96237

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-96237
• https://support.microsoft.com/help/5130034

Related Security Bulletins

• Multiple vulnerabilities in Microsoft Windows