CVE-2023-34335: AMI MegaRAC SPx

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

AMI BMC contains a vulnerability in the IPMI handler, where an unauthenticated host is allowed to write to a host SPI flash, bypassing secure boot protections. An exploitation of this vulnerability may lead to a loss of integrity or denial of service.  

Affected products

• AMI MegaRAC SPx: from 12.0, before 12.7 (fixed in 12.7); from 13.0, before 13.5 (fixed in 13.5)

Published 2023-06-12. Last modified 2026-06-17.