Vulnerability Intelligence Report
CVE-2023-20555
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
EPSS Probability:0.30%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 | various (affected) |
| AMD | Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 | various (affected) |
| AMD | Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4 | various (affected) |
| AMD | Ryzen™ 7000 Series Processors “Raphael” | various (affected) |
| AMD | Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” | various (affected) |
| AMD | Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics “Renoir” FP5 | various (affected) |
| AMD | Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” FP5 | various (affected) |
| AMD | Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock” | various (affected) |
| AMD | Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Picasso” | various (affected) |
| AMD | Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6 | 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) |
| AMD | Ryzen™ 6000 Series Mobile Processors "Rembrandt" | various (affected) |
| AMD | Ryzen™ 7030 Series Mobile Processors “Barcelo” | various (affected) |
| AMD | Ryzen™ 7020 Series Mobile Processors “Mendocino” | various (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.299%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-10-27T18:53:39 |
| Published | 2023-08-08T17:07:24 |
| Patch Date | 2023-08-08 |
| Last Updated | 2024-10-24T14:36:35 |
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