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CVE-2021-43522

nvd nist
Published: Feb 3, 2022Modified: Nov 4, 2025

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7.5
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitability: 0.8 / Impact: 6.0
Source: NVD

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Affected (3)

Products: Insyde: Insydeh2o
Insyde
1 product
Insydeh2o
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.1 to 5.14.34
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.2 to 5.24.34
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.3 to 5.33.34

Related CWEs

CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

References (7)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.