CVE-2021-43327 Information

Description

An issue was discovered on Renesas RX65 and RX65N devices. With a VCC glitch an attacker can extract the security ID key from the device. Then the protected firmware can be extracted.

CVSS Vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://www.collshade.fr/articles/reneshack/rx_glitch_article.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

4.6