PT-2025-51755 · Ampere · Ampereone Ac03+2

Published 2025-12-16 · Updated 2025-12-21 · CVE-2025-62863

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions AmpereOne AC03 versions prior to 3.5.9.3 AmpereOne AC04 versions prior to 4.4.5.2 AmpereOne M versions prior to 5.4.5.1

Description The software contains a flaw where an incorrectly formed System Management Call (SMC) to the UEFI-MM PCIe driver can lead to an out-of-bounds write within the PCIe driver’s S-EL0 address space.

Recommendations Update AmpereOne AC03 devices to version 3.5.9.3 or later. Update AmpereOne AC04 devices to version 4.4.5.2 or later. Update AmpereOne M devices to version 5.4.5.1 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2025-62863

Affected Products

Ampereone Ac03

Ampereone Ac04

Ampereone

References · 6

• https://amperecomputing.com/products/security-bulletins/amp-sb-0007 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-62863 · Security Note
• https://osv.dev/vulnerability/CVE-2025-62863 · Vendor Advisory
• https://amperecomputing.com/products/product-security · Vendor Advisory
• https://t.me/CVEtracker/39987 · Telegram Post
• https://twitter.com/CVEnew/status/2002836015963140157 · Twitter Post