CVE-2025-7029
High
Description
A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used to derive pointers (OcHeader, OcData) passed into power and thermal configuration logic. These buffers are not validated before performing multiple structured memory writes based on OcSetup NVRAM values, enabling arbitrary SMRAM corruption and potential SMM privilege escalation.
SeverityHigh
CVSS8.2
Exploit probability—
ProductUEFI-OverClockSmiHandler
PublishedJul 11, 2025
First seenJul 11, 2025
Weakness typeCWE-822CWE-822
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| GIGABYTE UEFI-OverClockSmiHandler | 1.0.0 | — |
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