CVE-2021-41837

8.2 HIGH
Published: February 03, 2022 Modified: November 04, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Source: cve@mitre.org
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220222-0003/
Source: cve@mitre.org
Third Party Advisory
https://www.insyde.com/security-pledge
Source: cve@mitre.org
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022024
Source: cve@mitre.org
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220222-0003/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.insyde.com/security-pledge
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022024
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.kb.cert.org/vuls/id/796611
Source: af854a3a-2127-422b-91ae-364da2661108

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.2 / 10.0
EPSS (Exploit Probability)
0.1%
20th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

insyde siemens

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