Introduction The discovery of critical vulnerabilities in SFAPE.dll , a core component of Virtualization-Based Security (VBS) enclaves in Windows Isolated User Mode (VTL1) , has exposed significant weaknesses in the security guarantees of this isolated environment. These flaws enable arbitrary code execution by allowing attackers to bypass the enclave’s isolation mechanisms. The implications are profound: unauthorized access, data exfiltration, and system-wide compromise become feasibl...