CVE-2025-0040 json
Improper access control between the Joint Test Action Group (JTAG) and Advanced Extensible Interface (AXI) could allow an attacker with phy…
published 2026-05-15 5 mo ago modified 2026-10-14 25 d ago also EUVD-2025-209873
- cvss
- 5.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- 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 1.1.0.3d, 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
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 8000 Series Desktop Processors
- AMD AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ Embedded 8000 Series Processors
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
Sources
- CVE List CVE-2025-0040
- NVD CVE-2025-0040
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