CVE-2009-4419: Intel GM45 Chipset

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to bypass the Trusted Execution Technology protection mechanism and gain privileges by modifying the MCHBAR register to point to an attacker-controlled region, which prevents the SENTER instruction from properly applying VT-d protection while an MLE is being loaded.

Affected products

• Intel GM45 Chipset: any version
• Intel PM45 Express Chipset: any version
• Intel q35 Chipset: any version
• Intel q43 Express Chipset: any version
• Intel q45 Chipset: any version

Published 2009-12-24. Last modified 2026-06-16.