Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-62864

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
16/12/2025
Last modified:
13/01/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amperecomputing:ampereone_a192-32m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a192-32m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a192-26m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a192-26m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a160-28m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a160-28m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-33m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a144-33m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-26m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a144-26m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a96-36m_firmware:*:*:*:*:*:*:*:* 5.4.5.1 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a96-36m:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a96-36x_firmware:*:*:*:*:*:*:*:* 4.4.5.2 (excluding)
cpe:2.3:h:amperecomputing:ampereone_a96-36x:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a128-34x_firmware:*:*:*:*:*:*:*:* 4.4.5.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools