CVE-2026-9492: MBStorage 0 through 26.02.10.01

CVE-2026-9492. CVSS 3.1 base score 7.8 (HIGH, Vendor/CNA). EPSS 0.00157 (percentile 0.04452), scored 24-Oct-2026.

Affected technology

MBStorage · 0 through 26.02.10.01
GIGABYTE

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · Low privileges required · No user interaction required

What an attacker can do

Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges. Vendor/CNA’s CVSS 4.0 assessment (base score 8.5/10) rates confidentiality, integrity and availability impact as high.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-782
CCR priority: 31.2 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00157 · percentile 0.04452 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-9492.html