AUGUST 4, 2026
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Case File

CVE-2021-41840

HIGH · CVSS 8.2 EPSS 0.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-03 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-41840
Severity
HIGH
CVSS
8.2
EPSS
0.30%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)