Executive brief
Windows Deployment Services is a Microsoft server component used to provision and manage Windows installations across networks. A heap-based buffer overflow in this service allows an authorized user with local access to execute arbitrary code with elevated privileges, potentially compromising the deployment infrastructure and any systems it manages.
Technical details
A heap-based buffer overflow vulnerability exists in Windows Deployment Services, triggered by improper input validation when handling specially crafted requests. An authorized local attacker can craft malicious input that overflows a heap buffer, allowing arbitrary code execution in the context of the affected service. The vulnerability requires authentication and local network access to exploit. Microsoft has released patches to address this issue; administrators should apply the security update immediately to prevent potential lateral movement and system compromise.
Affected products
- Microsoft Windows Deployment Services <UNKNOWN>
Timeline
- 2026-09-08: disclosed