The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-22T16:53:32

Updated: 2024-08-03T23:50:42.938Z

Reserved: 2021-05-20T00:00:00

Link: CVE-2021-33478

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-07-22T17:15:09.510

Modified: 2021-08-02T15:38:07.013

Link: CVE-2021-33478

cve-icon Redhat

No data.