Local Exploit in Software SMI Handler Affects Gigabyte Products
CVE-2025-7028

7.8HIGH

Key Information:

Vendor

Gigabyte

Status
Uefi-smiflash
Vendor
CVE Published:
11 July 2025

What is CVE-2025-7028?

A vulnerability in the Software SMI handler allows local attackers to exploit unchecked pointer dereferencing in multiple flash management functions. By supplying a carefully crafted pointer through specific CPU register values, an attacker can gain unauthorized access to System Management RAM (SMRAM). This exploitation can lead to firmware memory corruption, extraction of sensitive information, and the installation of persistent malware, posing significant risks to affected Gigabyte products.

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Affected Version(s)

UEFI-SmiFlash 1.0.0

References

https://www.gigabyte.com/Support/Security
https://www.binarly.io/advisories/brly-dva-2025-010
https://kb.cert.org/vuls/id/746790

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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