Bypass Record

BYOVD (Vulnerable Driver) × Riot Games Vanguard

A publicly-reported instance of BYOVD (Vulnerable Driver) bypassing Riot Games Vanguard, recorded with its original source. Factual record; no assessment of any specific deployment.

Product
Riot Games Vanguard
Technique
BYOVD (Vulnerable Driver)
MITRE ATT&CK
T1562.001
Confidence
High
Severity
Critical
Status
patched
Disclosed
2025-03-02
Config / version noted
Not stated

Provenance

Reported as

bypassed Vanguard's protections

Mechanism

The exploit directly manipulates physical memory to load an unsigned driver into kernel space, bypassing Windows DSE and Vanguard's kernel-level protections. It uses a driver mapping engine, kernel context handler, and driver image processor to map physical pages, resolve imports, and establish communication channels for privileged memory operations on the game process.

Detection & mitigation

Monitor for drivers loaded with invalid or untrusted signatures using Windows Event ID 3023 (Microsoft-Windows-CodeIntegrity/Operational) or EDR telemetry. Mitigate by enforcing HVCI/VBS and maintaining updated anti-cheat/EDR signatures to block known vulnerable driver hashes.

BYOVD (Vulnerable Driver) has also been recorded against

This is a record of a publicly-reported event, not an assessment of any specific organization's deployment. Detection and mitigation notes are drawn from the cited source. Where the source is silent, fields are omitted.