CVE-2026-5818

Published June 24th, 2026

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CVSS v3

N/A

CVSS v2

N/A

Affected

PROJECT

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.

chipsalliance/caliptra-sw

Caliptra software (ROM, FMC, runtime firmware), and libraries/tools needed to build and test

GitHub

155