Description
Improper access control between the Joint Test Action Group (JTAG) and Advanced Extensible Interface (AXI) could allow an attacker with physical access to read or overwrite the contents of cross-chip debug (XCD) registers potentially resulting in loss of data integrity or confidentiality.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AMD | AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics | — | PhoenixPI-FP8-FP7_1.2.0.B |
| AMD | AMD Ryzen™ 8000 Series Desktop Processors | — | ComboAM5PI 1.2.0.3d |
| AMD | AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics | — | PhoenixPI-FP8-FP7_1.2.0.B |
| AMD | AMD Ryzen™ Embedded 8000 Series Processors | — | EmbeddedPhoenixPI-FP7r2_1.0.0.2 |
Advisories 2
- WID-SEC-2026-1482 AMD Prozessor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 9, 2026
- WID-SEC-2026-1697 AMD Chipsätze: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 16, 2026