Description

A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used as an unchecked pointer in the CommandRcx0 function. If the contents at RBX match certain expected values (e.g., '$DB$' or '2DB$'), the function performs arbitrary writes to System Management RAM (SMRAM), leading to potential privilege escalation to System Management Mode (SMM) and persistent firmware compromise.

INFO

Published Date :

2025-07-11T15:27:34.960Z

Last Modified :

2026-02-26T17:50:43.390Z

Source :

certcc
AFFECTED PRODUCTS

The following products are affected by CVE-2025-7026 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-7026.

URL Resource
https://kb.cert.org/vuls/id/746790 cve-icon cve-icon
https://www.binarly.io/advisories/brly-dva-2025-008 cve-icon cve-icon
https://www.gigabyte.com/Support/Security cve-icon cve-icon
https://www.kb.cert.org/vuls/id/746790 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact