VULNERABILITY INTELLIGENCE

CVE-2021-41840

CVSS score8.2 HIGH
EPSS probability0.30%
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 NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.

Weakness classification

  • nvd@nist.gov: CWE-770

Primary references