VDB
CVE-2021-33478
CVE-2021-33478
PUBLISHED
CVSS 6.800000190734863 MEDIUM
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.
EPSS 0.13% · 32.5th percentile
Risk Scores
CVSS 3.1
6.800000190734863
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.13%
32.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| cisco | ip_phone_8861_firmware | 0 |
| cisco | ip_phone_8800_firmware | 0 |
| cisco | ip_phone_8811_firmware | 0 |
| cisco | ip_phone_8851_firmware | 0 |
| cisco | ip_phone_8841_with_multiplatform_firmware | 0 |
| n/a | n/a | n/a |
| cisco | ip_phone_8865_with_multiplatform_firmware | 0 |
| cisco | ip_phone_8841_firmware | 0 |
| cisco | ip_phone_8845_with_multiplatform_firmware | 0 |
| cisco | ip_phone_8851_with_multiplatform_firmware | 0 |
| cisco | ip_phone_8811_with_multiplatform_firmware | 0 |
| cisco | wireless_ip_phone_8821_firmware | 0 |
| cisco | ip_phone_8800_series_with_multiplatform_firmware | 0 |
| cisco | ip_phone_8845_firmware | 0 |
| cisco | ip_phone_8865_firmware | 0 |
| cisco | ip_phone_8861_with_multiplatform_firmware | 0 |
Exploit Intelligence
Timeline
- Apr 13, 2021 CVE Published
- Jul 23, 2021 EPSS Score
- Sep 20, 2021 EPSS Score
- Nov 19, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 17, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 16, 2022 EPSS Score
- Jul 15, 2022 EPSS Score
- Sep 12, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
- Jan 9, 2023 EPSS Score