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Critical 9.8Published Dec 16, 2025

CVE-2025-62863Ampere 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 resu…

Updated under an hour ago ()

Does this affect you?

It affects amperecomputing ampereone_a192-32m_firmware and 12 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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 result in an out-of-bounds write within PCIe driver’s S-EL0 address space.

CVSS
9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-787
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Oct 13, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
amperecomputing ampereone_a192-32m_firmware
amperecomputing:ampereone_a192-32m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a192-26m_firmware
amperecomputing:ampereone_a192-26m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a160-28m_firmware
amperecomputing:ampereone_a160-28m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a144-33m_firmware
amperecomputing:ampereone_a144-33m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a144-26m_firmware
amperecomputing:ampereone_a144-26m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a96-36m_firmware
amperecomputing:ampereone_a96-36m_firmware
before 5.4.5.1
NVD
amperecomputing ampereone_a96-36x_firmware
amperecomputing:ampereone_a96-36x_firmware
before 4.4.5.2
NVD
amperecomputing ampereone_a128-34x_firmware
amperecomputing:ampereone_a128-34x_firmware
before 4.4.5.2
NVD
amperecomputing ampereone_a144-24x_firmware
amperecomputing:ampereone_a144-24x_firmware
before 4.4.5.2
NVD
amperecomputing ampereone_a144-27x_firmware
amperecomputing:ampereone_a144-27x_firmware
before 4.4.5.2
NVD
amperecomputing ampereone_a160-28x_firmware
amperecomputing:ampereone_a160-28x_firmware
before 4.4.5.2
NVD
amperecomputing ampereone_a192-26x_firmware
amperecomputing:ampereone_a192-26x_firmware
before 4.4.5.2; before 3.5.9.3
NVD
amperecomputing ampereone_a192-32x_firmware
amperecomputing:ampereone_a192-32x_firmware
before 3.5.9.3
NVD

References

  • vendor-advisory
  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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