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.
CVSS breakdown
CVSS 4.0
Attack Vector
Physical
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- AMD / AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ GraphicsPhoenixPI-FP8-FP7_1.2.0.B – PhoenixPI-FP8-FP7_1.2.0.B
- AMD / AMD Ryzen™ 8000 Series Desktop ProcessorsComboAM5PI 1.2.0.3d – ComboAM5PI 1.2.0.3d
- AMD / AMD Ryzen™ 8000 Series Desktop ProcessorsComboAM5PI 1.1.0.3d – ComboAM5PI 1.1.0.3d
- AMD / AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ GraphicsPhoenixPI-FP8-FP7_1.2.0.B – PhoenixPI-FP8-FP7_1.2.0.B
- AMD / AMD Ryzen™ Embedded 8000 Series ProcessorsEmbeddedPhoenixPI-FP7r2_1.0.0.2 – EmbeddedPhoenixPI-FP7r2_1.0.0.2