๐Ÿ›ก๏ธ CVE-2025-7026
๐ŸŸ  CVSS 8.2 โ€” High โœ… No Known Exploit NVD
8.2
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.2
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE N/A
Public Exploit โœ… No
Source NVD
Published 2025-07-11
Updated 2026-06-02
Modified 2026-04-15
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown โ€” โ€”

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