CVE-2025-62864
Last modified
CVE-2025-62864 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amperecomputing | Ampereone A192-32m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A192-26m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A160-28m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A144-33m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A144-26m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A96-36m Firmware | < 5.4.5.1 |
| Amperecomputing | Ampereone A96-36x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A128-34x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A144-24x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A144-27x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A160-28x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A192-26x Firmware | < 4.4.5.2 |
| Amperecomputing | Ampereone A192-26x Firmware | < 3.5.9.3 |
| Amperecomputing | Ampereone A192-32x Firmware | < 3.5.9.3 |
References
- https://amperecomputing.com/products/product-securityVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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