CVE-2023-20577
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.
| CWE | CWE-121 |
| Vendor | amd |
| Product | 2nd gen amd epyc™ processors |
| Published | Sep 2, 2026 |
| Last Updated | Sep 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
AMD / 2nd Gen AMD EPYC™ Processors
All versions affected AMD / 3rd Gen AMD EPYC™ Processors
All versions affected AMD / 4th Gen AMD EPYC™ Processors
All versions affected AMD / AMD Instinct™ MI300A
All versions affected AMD / AMD Ryzen™ 3000 Series Desktop Processors
All versions affected AMD / AMD Ryzen™ 5000 Series Desktop Processors
All versions affected AMD / AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 7000 Series Processors
All versions affected AMD / AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ Threadripper™ 3000 Series Processors
All versions affected AMD / AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors
All versions affected AMD / AMD Ryzen™ Threadripper™ PRO 5000WX Processors
All versions affected AMD / AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ 7045 Series Mobile Processors
All versions affected AMD / AMD EPYC™ Embedded 3000
All versions affected AMD / AMD EPYC™ Embedded 7002
All versions affected AMD / AMD EPYC™ Embedded 7003
All versions affected AMD / AMD EPYC™ Embedded 9003
All versions affected AMD / AMD Ryzen™ Embedded R1000
All versions affected AMD / AMD Ryzen™ Embedded R2000
All versions affected AMD / AMD Ryzen™ Embedded 5000
All versions affected AMD / AMD Ryzen™ Embedded V1000
All versions affected AMD / AMD Ryzen™ Embedded V2000
All versions affected AMD / AMD Ryzen™ Embedded V3000
All versions affected