CVE-2021-43323

2022-02-0301:50:01

mitre

www.cve.org

smm callout vulnerability

insydeh2o

kernel version

privilege escalation

code execution

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

21.8%

JSON

An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.