VULNERABILITY INTELLIGENCE

CVE-2025-62864

CVSS score9.8 CRITICAL
EPSS probability0.36%
CISA KEVNot currently listed
Published2025-12-16
Last modified2026-10-13
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM MMCommunicate service that could result in an out-of-bounds write within the UEFI-MM Secure Partition context.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-787

Primary references