CVE WatchAug 11, 2026

CVE-2021-41841

An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to

CVSS

8.2

High

EPSS

0.3%

p23

KEV

—

Exploit Today

0-100

Published: Feb 3, 2022 · Last modified: Aug 11, 2026 · CWE-829

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-08-122026-09-09

Technical description

An issue was discovered in AhciBusDxe 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.

Official references

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