VULNERABILITY INTELLIGENCE

CVE-2026-56879

CVSS score6.7 MEDIUM
EPSS probability0.09%
CISA KEVNot currently listed
Published2026-09-15
Last modified2026-09-21
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

In gmc_mb_msg_handler of gmc_mba.c, there is a possible memory corruption due to a confused deputy. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-441

Primary references