CVE-2021-33478

The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code…

published July 22, 2021

CVSS
—
EPSS
0%
Percentile
22.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00304 · 22.0th percentile
Published
2021-07-22T16:53Z
EPSS history
Timeline
  • 22 JUL 16:53Z
    The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code…
    cvelistv5