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CVE-2025-7029

SMM Arbitrary Write via Unchecked OcHeader Buffer in Platform Configuration Handler

Published: Jul 11, 2025Updated: Nov 3, 2025 Sources: CVE List NVD BDU
NVD MITRE
8.2CVSSHIGH
EPSS Score
0.2%
Top 91.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:CC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Affected Products

GA-H110M-S2HPGigabyte Technology Co., Ltd.Hardware Firmware
GA-H110M-S2VGigabyte Technology Co., Ltd.Hardware Firmware
GA-H110M-S2HGigabyte Technology Co., Ltd.Hardware Firmware
GA-B150M-DS3H DDR3Gigabyte Technology Co., Ltd.Hardware Firmware
GA-H110M-S2V DDR3Gigabyte Technology Co., Ltd.Hardware Firmware
gigabyte technology co., ltd.commercialTWConsumer Softwareaka gigabyte
and 51 more affected products View all →

Exploitability

Official Patch Available

References

https://kb.cert.org/vuls/id/746790
kb.cert.org
https://www.binarly.io/advisories/brly-dva-2025-011
binarly.io
https://www.gigabyte.com/Support/Security
gigabyte.com
and 3 more references View all →

Timeline

Published
Jul 11, 2025
Last Updated
Nov 3, 2025

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