Vulnerability Intelligence Report
CVE-2023-20577
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.
No Active Exploit Signals
CVSS Base Score
7.4
HIGH
Exploitability:1.5
Impact Score:5.9
EPSS Probability:0.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-121 ↗CWE-121 Stack-based buffer overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | 2nd Gen AMD EPYC™ Processors | RomePI 1.0.0.H (unaffected) |
| AMD | 3rd Gen AMD EPYC™ Processors | MilanPI 1.0.0.C (unaffected) |
| AMD | 4th Gen AMD EPYC™ Processors | GenoaPI 1.0.0.8 (unaffected) |
| AMD | AMD Instinct™ MI300A | MI300 SR5 PI 1.0.0.1 (unaffected) |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4v2 1.2.0.B (unaffected), ComboAM4 1.0.0.B (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ 7000 Series Processors | ComboAM5 1.0.0.7b (unaffected) |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 1.2.0.B (unaffected), ComboAM4 1.0.0.B (unaffected) |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | CastlePeakPI-SP3r3 1.0.0.A (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | ChagallWSPI-sWRX8 1.0.0.7 (unaffected), CastlePeakWSPI-sWRX8 1.0.0.C (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX Processors | ChagallWSPI-sWRX8 1.0.0.7 (unaffected) |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | PicassoPI-FP5 1.0.1.0 (unaffected) |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | PollockPI-FT5 1.0.0.6 (unaffected) |
| AMD | AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics | PicassoPI-FP5 1.0.1.0 (unaffected) |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | RenoirPI-FP6 1.0.0.D (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.F (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.F (unaffected) |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | MendocinoPI-FT6 1.0.0.6 (unaffected) |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b (unaffected) |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.F (unaffected) |
| AMD | AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.F (unaffected) |
| AMD | AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics | PhoenixPI-FP8-FP7 1.0.0.2 (unaffected) |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors | DragonRangeFL1PI 1.0.0.3a (unaffected) |
| AMD | AMD EPYC™ Embedded 3000 | Snowyowl PI 1.1.0.B (unaffected) |
| AMD | AMD EPYC™ Embedded 7002 | EmbRomePI-SP3 1.0.0.B (unaffected) |
| AMD | AMD EPYC™ Embedded 7003 | EmbMilanPI-SP3 1.0.0.8 (unaffected) |
| AMD | AMD EPYC™ Embedded 9003 | EmbGenoaPI-SP5 1.0.0.3 (unaffected) |
| AMD | AMD Ryzen™ Embedded R1000 | EmbeddedPI-FP5 1.2.0.A (unaffected) |
| AMD | AMD Ryzen™ Embedded R2000 | EmbeddedPI-FP5 1.0.0.2 (unaffected) |
| AMD | AMD Ryzen™ Embedded 5000 | EmbAM4PI 1.0.0.4 (unaffected) |
| AMD | AMD Ryzen™ Embedded V1000 | EmbeddedPI-FP5 1.2.0.A (unaffected) |
| AMD | AMD Ryzen™ Embedded V2000 | EmbeddedPI-FP6 1.0.0.9 (unaffected) |
| AMD | AMD Ryzen™ Embedded V3000 | EmbeddedPI-FP7r2 1.0.0.8 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.160%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-10-27T18:53:39 |
| Published | 2026-09-02T19:57:10 |
| Last Updated | 2026-09-04T19:56:31 |
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