CVE-2025-62864
CRITICAL EPSS 23.1%
Published Dec 16, 20256mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Dec 16, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
23.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 28
| Vendor | Product | Version | Range |
|---|---|---|---|
| amperecomputing | ampereone_a192-32m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a192-32m | * | any |
| amperecomputing | ampereone_a192-26m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a192-26m | * | any |
| amperecomputing | ampereone_a160-28m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a160-28m | * | any |
| amperecomputing | ampereone_a144-33m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a144-33m | * | any |
| amperecomputing | ampereone_a144-26m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a144-26m | * | any |
| amperecomputing | ampereone_a96-36m_firmware | * | <5.4.5.1 |
| amperecomputing | ampereone_a96-36m | * | any |
| amperecomputing | ampereone_a96-36x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a96-36x | * | any |
| amperecomputing | ampereone_a128-34x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a128-34x | * | any |
| amperecomputing | ampereone_a144-24x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a144-24x | * | any |
| amperecomputing | ampereone_a144-27x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a144-27x | * | any |
| amperecomputing | ampereone_a160-28x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a160-28x | * | any |
| amperecomputing | ampereone_a192-26x_firmware | * | <4.4.5.2 |
| amperecomputing | ampereone_a192-26x | * | any |
| amperecomputing | ampereone_a192-26x_firmware | * | <3.5.9.3 |
| amperecomputing | ampereone_a192-26x | * | any |
| amperecomputing | ampereone_a192-32x_firmware | * | <3.5.9.3 |
| amperecomputing | ampereone_a192-32x | * | any |
References 2
- amperecomputing.com https://amperecomputing.com/products/product-security
- amperecomputing.com https://amperecomputing.com/products/security-bulletins/amp-sb-0007
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.