CVE-2024-52877
High
Description
An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, callback function SmmCreateVariableLockList () calls CreateVariableLockListInSmm (). In CreateVariableLockListInSmm (), it uses StrSize () to get variable name size and it could lead to a buffer over-read.
SeverityHigh
CVSS7.5
Exploit probability—
ProductInsydeh2o
PublishedMay 15, 2025
First seenMay 15, 2025
Weakness typeCWE-126CWE-126
How to fix
Update
- insyde insydeh2o5.2.05.29.50, 5.3.05.38.50, 5.4.05.46.50, 5.5.05.54.50, 5.6.05.61.50, 5.7.05.70.50 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.2 ≤ v < 5.2.05.29.50, 5.3 ≤ v < 5.3.05.38.50, 5.4 ≤ v < 5.4.05.46.50, 5.5 ≤ v < 5.5.05.54.50, 5.6 ≤ v < 5.6.05.61.50, 5.7 ≤ v < 5.7.05.70.50 | 5.2.05.29.50, 5.3.05.38.50, 5.4.05.46.50, 5.5.05.54.50, 5.6.05.61.50, 5.7.05.70.50 |
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