In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.
In Arm Trusted Firmware M through 1.2, the NS world may trigger a system halt, an overwrite of secure data, or the printing out of secure data when calling secure functions under the NSPE handler mode.
Why this VPI (explainable, experimental)
VPI breakdown
| Impact | 55.00 |
| Exploitation signal(KEV listed) | ×1.50 |
| VPI | 82.50 |
VPI formula vpi-v1
Required Action
Apply updates per vendor instructions.
| Source | CVSS Version | Base Score | Severity | Vector String | Assessment Date |
|---|---|---|---|---|---|
| NVDNIST | 3.1 | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 04/20/2026 |
| NVDNIST | 2.0 | 4.9 |
| AV:L/AC:L/Au:N/C:N/I:N/A:C |
| 04/20/2026 |