High severity8.2NVD Advisory· Published Feb 3, 2022· Updated Aug 11, 2026

CVE-2021-41841

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Insyde/InsydeH2O2 versions
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*range: >=5.0,<5.08.29
- (no CPE)range: 5.0-5.5
Insyde/InsydeH2Odescription

Patches

Vulnerability mechanics

References

cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfnvdThird Party Advisory
security.netapp.com/advisory/ntap-20220217-0012/nvdThird Party Advisory
www.insyde.com/security-pledgenvdVendor Advisory
www.insyde.com/security-pledge/SA-2022019nvdVendor Advisory
cert-portal.siemens.com/productcert/html/ssa-306654.htmlnvd
www.kb.cert.org/vuls/id/796611nvd

News mentions

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cvss	0.533
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000