VULNERABILITY INTELLIGENCE

CVE-2021-41837

CVSS score8.2 HIGH
EPSS probability0.28%
CISA KEVNot currently listed
Published2022-02-03
Last modified2026-08-11
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Description

An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Weakness classification

  • nvd@nist.gov: CWE-119

Primary references