CVE-2025-7026

8.2 highEPSS 0.2%

High (8.2). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.2 high

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
Published: 2025-07-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://kb.cert.org/vuls/id/746790
https://www.binarly.io/advisories/brly-dva-2025-008
https://www.gigabyte.com/Support/Security
https://www.kb.cert.org/vuls/id/746790

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