Vulnerability Intelligence Report
CVE-2021-46794
Insufficient bounds checking in ASP (AMD Secure Processor) may allow for an out of bounds read in SMI (System Management Interface) mailbox checksum calculation triggering a data abort, resulting in a potential denial of service.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:0.62%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-125 ↗CWE-125 Out-of-bounds Read
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4 | various (affected) |
| AMD | Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 | various (affected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 | various (affected) |
| AMD | Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4 | Various (affected) |
| AMD | 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT | various (affected) |
| AMD | Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS | various (affected) |
| AMD | Ryzen™ Threadripper™ PRO Processors “Chagall” WS | various (affected) |
| AMD | Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP | various (affected) |
| AMD | Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock” | various (affected) |
| AMD | Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5 | various (affected) |
| AMD | Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso” | various (affected) |
| AMD | Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” | various (affected) |
| AMD | Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” | various (affected) |
| AMD | Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne” | various (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.616%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-05-04T18:14:06 |
| Published | 2023-05-09T19:01:47 |
| Patch Date | 2023-05-09 |
| Last Updated | 2025-01-28T15:25:54 |
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