CVE-2021-41840
High
Description
An issue was discovered in NvmExpressDxe 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.
SeverityHigh
CVSS8.2
Exploit probability—
ProductInsydeh2o
PublishedFeb 3, 2022
First seenFeb 3, 2022
How to fix
Update
- insyde insydeh2o5.23.35, 5.32.35, 5.40.35 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.2 ≤ v < 5.23.35, 5.3 ≤ v < 5.32.35, 5.4 ≤ v < 5.40.35 | 5.23.35, 5.32.35, 5.40.35 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.