CVE-2018-3643: Intel Converged Security Management Engine Firmware

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability in Power Management Controller firmware in systems using specific Intel(R) Converged Security and Management Engine (CSME) before version 11.8.55, 11.11.55, 11.21.55, 12.0.6 or Intel(R) Server Platform Services firmware before version 4.x.04 may allow an attacker with administrative privileges to uncover certain platform secrets via local access or to potentially execute arbitrary code.

Affected products

• Intel Converged Security Management Engine Firmware: before 12.0.6 (fixed in 12.0.6)
• Intel Server Platform Services Firmware: before 4.00.04 (fixed in 4.00.04)

Published 2018-09-12. Last modified 2026-06-17.