AUGUST 4, 2026
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Case File

CVE-2025-7026

HIGH · CVSS 8.2 EPSS 0.20%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-07-11 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.2. See the original NVD description below for full technical details.

CVE
CVE-2025-7026
Severity
HIGH
CVSS
8.2
EPSS
0.20%

Original NVD 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.