CVE-2026-22166: UAF in GPU DDK 1.18.0–26.1 RTM

The core impact of CVE-2026-22166 lies in its potential for remote code execution (RCE) on systems with elevated privileges. An attacker could craft a malicious web page containing specially designed WebGPU content. When this content is loaded and processed by the GPU DDK, the UAF condition is triggered, leading to a crash. If the process handling the graphics workload has system privileges, this crash can be leveraged to execute arbitrary code, effectively compromising the entire system. The blast radius is significant, potentially affecting any application utilizing the vulnerable GPU DDK, especially those handling user-supplied WebGPU content. This vulnerability shares similarities with other UAF exploits where memory corruption can be chained to achieve RCE.

1. Published2026-05-01
2. EPSS updated2026-05-09

Due to the lack of a fixed version, mitigation strategies focus on reducing the attack surface and limiting potential damage. The primary approach is to restrict the loading and execution of untrusted WebGPU content. This can be achieved through stricter content filtering policies within web applications and browsers. Reviewing and minimizing the privileges granted to processes handling graphics workloads is also crucial. Consider implementing sandboxing techniques to isolate graphics processing from the rest of the system. While a direct detection signature is difficult to create, monitoring for unexpected GPU GLES library crashes and unusual WebGPU activity can provide early warning signs. Regularly review and update security policies related to web content and privilege management. After implementing these mitigations, verify the system's stability by testing with various WebGPU applications and observing GPU performance.