synced 14 MIN AGO
01 Record

CVE-2025-62863

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 PCIe driver that could

CriticalPUBLISHEDCNA: mitre
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 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 PCIe driver that could

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.36% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 30.1% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-13.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-12-16 00:00Z10 MO AGO
Last updated
2025-12-17 14:30Z10 MO AGO
Reserved
2025-10-24
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.2
Document digest
6938678c992f401b5096f2f1e3dd72241b8974fff1382ed353994472dc377b59

05 Affected products

VendorProductVersionsPlatforms
amperecomputingampereone_a128-34xNot specified—
amperecomputingampereone_a128-34x_firmwareNot specified—
amperecomputingampereone_a144-24xNot specified—
amperecomputingampereone_a144-24x_firmwareNot specified—
amperecomputingampereone_a144-26mNot specified—
amperecomputingampereone_a144-26m_firmwareNot specified—
amperecomputingampereone_a144-27xNot specified—
amperecomputingampereone_a144-27x_firmwareNot specified—
amperecomputingampereone_a144-33mNot specified—
amperecomputingampereone_a144-33m_firmwareNot specified—
amperecomputingampereone_a160-28mNot specified—
amperecomputingampereone_a160-28m_firmwareNot specified—
amperecomputingampereone_a160-28xNot specified—
amperecomputingampereone_a160-28x_firmwareNot specified—
amperecomputingampereone_a192-26mNot specified—
amperecomputingampereone_a192-26m_firmwareNot specified—
amperecomputingampereone_a192-26xNot specified—
amperecomputingampereone_a192-26x_firmwareNot specified—
amperecomputingampereone_a192-32mNot specified—
amperecomputingampereone_a192-32m_firmwareNot specified—
amperecomputingampereone_a192-32xNot specified—
amperecomputingampereone_a192-32x_firmwareNot specified—
amperecomputingampereone_a96-36mNot specified—
amperecomputingampereone_a96-36m_firmwareNot specified—
amperecomputingampereone_a96-36xNot specified—
amperecomputingampereone_a96-36x_firmwareNot specified—

06 References