CVE-2018-19323

GIGABYTE drivers allow local privilege escalation via arbitrary memory read/write, enabling ransomware attackers to gain system control.

GIGABYTE's GPCIDrv and GDrv drivers in multiple products expose arbitrary physical memory read/write, allowing local attackers to escalate privileges. This is critical for DIBs because it provides a direct path for ransomware to move from a compromised endpoint to full system control, violating CMMC/NIST 800-171 requirements for patch management and vulnerability mitigation. Organizations must verify that all GIGABYTE hardware and software are patched to the latest versions and restrict local administrative privileges.

Shame score — A privilege escalation vulnerability in widely deployed GIGABYTE drivers was actively exploited in the wild by ransomware groups, demonstrating severe negligence in patching and security design.