Description
Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AMD | AMD EPYC™ 9004 Series Processors | — | GenoaPI 1.0.0.F |
| AMD | AMD EPYC™ 9005 Series Processors | — | TurinPI 1.0.0.4 |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7_1.0.0.BD |
| AMD | AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics | — | PhoenixPI-FP8-FP7_1.2.0.0c |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | — | MendocinoPI-FT6_1.0.0.7c |
| AMD | AMD Ryzen™ 9000HX Series Mobile Processors | — | FireRangeFL1PI 1.0.0.0a |
| AMD | AMD Ryzen™ AI Max 300 Series Processors | — | StrixHaloPI-FP11_1.0.0.1 |
| AMD | AMD Ryzen™ AI 300 Series Processors | — | StrixKrackanPI-FP8_1.1.0.0b |
| AMD | AMD Ryzen™ Threadripper™ 7000 Processors | — | StormPeakPI-SP6_1.1.0.0j |
| AMD | AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors | — | StormPeakPI-SP6_1.0.0.1l |
| AMD | AMD Ryzen™ 8000 Series Desktop Processors | — | ComboAM5 1.1.0.3d |
| AMD | AMD Ryzen™ 9000 Series Desktop Processors | — | ComboAM5 1.2.0.3d |
| AMD | Not public | — | ComboAM5 1.2.0.3d |
| AMD | AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics | — | PhoenixPI-FP8-FP7_1.2.0.0c |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | — | RembrandtPI-FP7_1.0.0.BD |
| AMD | AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") | — | EmbGenoaPI-SP5 1.0.0.B |
| AMD | AMD Ryzen™ Embedded 8000 Series Processors | — | EmbeddedPhoenixPI-FP7r2_1.0.0.2 |
| AMD | AMD Ryzen™ Embedded V3000 Series Processors | — | Embedded-PI_FP7r2 100F |
Advisories 1
- WID-SEC-2026-0381 AMD EPYC, Athlon und Ryzen Prozessoren: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026