CVEvulnerability

CVE-2021-45969

8.2 HIGH Published 2022-01-05 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2022-01-05
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
Weaknesses
CWE-787

Description

An issue was discovered in AhciBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the CommBuffer+8 location).

Affected configurations

• insyde insydeh2o (>= 5.1 < 5.16.25) • insyde insydeh2o (>= 5.2 < 5.26.25) • insyde insydeh2o (>= 5.3 < 5.35.25) • insyde insydeh2o (>= 5.4 < 5.43.25) • insyde insydeh2o (>= 5.5 < 05.51.25)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References