CVE-2025-7026
HIGH EPSS 9.9%
Published Jul 11, 202511mo ago · Modified Jun 17, 20261w ago
8.2 CVSS 3.1
Published Jul 11, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
9.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
References 4
- kb.cert.org https://kb.cert.org/vuls/id/746790
- binarly.io https://www.binarly.io/advisories/brly-dva-2025-008
- gigabyte.com https://www.gigabyte.com/Support/Security
- kb.cert.org https://www.kb.cert.org/vuls/id/746790
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.