What is the vulnerability ID of this issue?

The vulnerability ID of this issue is CVE-2021-42060.

What is the severity rating of CVE-2021-42060?

CVE-2021-42060 has a severity rating of 8.2 (high).

Which software versions are affected by CVE-2021-42060?

CVE-2021-42060 affects Insyde InsydeH2O Kernel versions 5.0 through 05.08.41, 5.1 through 05.16.41, 5.2 before 05.23.22, and 5.3 before 05.32.22.

Are there any known fixes or mitigation steps for CVE-2021-42060?

To mitigate CVE-2021-42060, it is recommended to apply the necessary security patches provided by Insyde or follow the guidance provided in the vendor's security advisory.

Vulnerability/
CVE-2021-42060

high

8.2

3/2/2022

4/8/2024

CVE-2021-42060

Q: What is the impact of CVE-2021-42060?

CVE-2021-42060 allows an attacker to hijack execution flow of code running in System Management Mode (SMM).

First published: Thu Feb 03 2022(Updated: )

An issue was discovered in Insyde InsydeH2O Kernel 5.0 through 05.08.41, Kernel 5.1 through 05.16.41, Kernel 5.2 before 05.23.22, and Kernel 5.3 before 05.32.22. An Int15ServiceSmm 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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Insyde InsydeH2O	>=5.2<5.23.35
Insyde InsydeH2O	>=5.3<5.32.35
Insyde InsydeH2O	>=5.1<5.16.42
Insyde InsydeH2O	>=5.0<05.08.49

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Frequently Asked Questions

What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2021-42060.
What is the severity rating of CVE-2021-42060?
CVE-2021-42060 has a severity rating of 8.2 (high).
Which software versions are affected by CVE-2021-42060?
CVE-2021-42060 affects Insyde InsydeH2O Kernel versions 5.0 through 05.08.41, 5.1 through 05.16.41, 5.2 before 05.23.22, and 5.3 before 05.32.22.
What is the impact of CVE-2021-42060?
CVE-2021-42060 allows an attacker to hijack execution flow of code running in System Management Mode (SMM).
Are there any known fixes or mitigation steps for CVE-2021-42060?
To mitigate CVE-2021-42060, it is recommended to apply the necessary security patches provided by Insyde or follow the guidance provided in the vendor's security advisory.

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