CVE-2022-47549: Trustedfirmware Op-Tee

Medium severity, CVSS 6.4. EPSS: 0.4% chance of exploitation in the next 30 days.

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

Affected products

• Trustedfirmware Op-Tee: before 3.20 (fixed in 3.20)

Published 2022-12-19. Last modified 2026-06-17.