CVE-2021-39296: Openbmc-Project Openbmc

Critical severity, CVSS 10.0. EPSS: 3% chance of exploitation in the next 30 days.

In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.

Affected products

• Openbmc-Project Openbmc: version 2.9.0 only

Published 2021-09-09. Last modified 2026-06-17.