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Vulnerability record · CVE-2025-62862 · published 16 December 2025

CVE-2025-62862: Amperecomputing ampereone a192-32m firmware out-of-bounds read vulnerability

Amperecomputing · Ampereone A192 32m Firmware

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 Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.

4.6 CVSS 3.1 Medium EPSS 0.13% · top 98.1% CWE-125 · Out-of-bounds readCWE-787 · Out-of-bounds write
4.6CVSS 3.1 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
13Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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 Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L

Affected products

13 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://amperecomputing.com/products/product-security Vendor Advisory
https://amperecomputing.com/products/security-bulletins/amp-sb-0007 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-62862), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.