CVE-2026-5818

Description

Incorrect check of function return value in Caliptra Core Runtime Firmware (ActivateFirmwareCmd::activate_fw modules) allows bypass of Caliptra Core's verification of the MCU FW during a hitless update. This issue affects Core Runtime Firmware: from 2.0.0 through 2.0.1, 2.1.0.

References

• https://github.com/chipsalliance/caliptra-sw/security/advisories/GHSA-456r-gcjr-6rxq