CVE-2021-43522
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductInsydeh2o
PublishedFeb 3, 2022
First seenFeb 3, 2022
How to fix
Update
- insyde insydeh2o5.14.34, 5.24.34, 5.33.34 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.1 ≤ v < 5.14.34, 5.2 ≤ v < 5.24.34, 5.3 ≤ v < 5.33.34 | 5.14.34, 5.24.34, 5.33.34 |
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