Zero-Day Advisory

Fortinet Discovers Vulnerability in Microsoft Windows Kernel NDProxy


Fortinet's FortiGuard Labs has discovered a buffer overflow vulnerability in the Routing and Remote Access NDProxy component of the Windows kernel, which could allow an attacker to run code with elevated privileges.


Users should apply the solution provided by Microsoft.

Additional Information

The vulnerability is caused by the insufficient checking for parameters passed from user mode to the kernel. It could lead to code execution in ring0 context.


Honggang Ren of Fortinet's FortiGuard Labs

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.