Hvci Bypass ((exclusive)) Jun 2026

Zenbleed (CVE-2023-20593) on AMD CPUs could corrupt register state across trust boundaries, potentially affecting hypervisor state. In theory, a well-crafted speculative execution attack could flip the HVCI-enable bit in a hypervisor register without ever making a direct system call.

An isolated environment running a minimal "Secure Kernel" ( securekernel.exe ) and isolated user-mode applications (Trustlets). HVCI lives inside VTL 1. Second-Level Address Translation (SLAT)

Attempting to bypass HVCI is highly discouraged by security experts and official support for the following reasons: Account Safety : Anti-cheat systems like Riot Vanguard Hvci Bypass

: Researchers spent weeks trying to find a reliable trick to intercept kernel activity while HVCI was active. This research focuses on hiding processes from user-mode enumeration by manipulating kernel structures—specifically, the process linked lists that Windows uses to track active processes. Process hiding remains a cornerstone technique for rootkits, anti-cheat evasion, and security research.

HVCI bypass represents one of the most challenging areas in modern Windows security. While HVCI and VBS provide substantial protection against traditional kernel attacks, security researchers have demonstrated that determined adversaries can still find ways to manipulate system behavior without triggering these protection mechanisms. Zenbleed (CVE-2023-20593) on AMD CPUs could corrupt register

This article is for educational and defensive purposes only. Unauthorized bypassing of security features may violate laws and regulations.

The landscape of HVCI bypass techniques spans multiple categories: data-only attacks that never execute new code, BYOVD attacks that weaponize legitimate signed drivers, physical memory manipulation, hypervisor configuration vulnerabilities, process structure manipulation, downgrade attacks, and zero-privilege exploits. Each category represents a different approach to solving the same problem: how to achieve kernel-level access when the hypervisor is watching. HVCI lives inside VTL 1

Since injecting new shellcode is impossible under a strict W^X policy, attackers turn to or Jump-Oriented Programming (JOP) .

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\DeviceGuard EnableVirtualizationBasedSecurity