GHSA-35m5-23fr-x9rq
GitHub Security Advisory
⚠ Unreviewed
HIGH
Has CVE
Advisory Details
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.
Related CVEs
Key Information
7.5
/10
Dataset
Last updated: July 26, 2025 6:37 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.