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CVE-2021-43323

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

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8.2
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitability: 1.5 / Impact: 6.0
Source: NVD

Description

An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

Affected (6)

Products: Insyde: Insydeh2o
Insyde
1 product
Insydeh2o
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.1 to 5.16.45
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.2 to 5.26.45
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.3 to 5.33.45
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.0 to 5.08.45
Configuration E
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.4 to 5.43.45
Configuration F
1 vulnerable
Vulnerable SoftwareAffected Versions
Insydeh2o
From 5.5 to 5.51.45

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.