CVEvulnerability

CVE-2021-43323

8.2 HIGH Published 2022-02-03 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2022-02-03
Last modified
2026-08-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C

Description

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.

Affected configurations

• insyde insydeh2o (>= 5.1 < 5.16.45) • insyde insydeh2o (>= 5.2 < 5.26.45) • insyde insydeh2o (>= 5.3 < 5.33.45) • insyde insydeh2o (>= 5.0 < 5.08.45) • insyde insydeh2o (>= 5.4 < 5.43.45) • insyde insydeh2o (>= 5.5 < 5.51.45)

References