High (7.5) in trustedfirmware trusted firmware-a. EPSS 1.0% chance of exploitation in the next 30 days.
In ARM Trusted Firmware through 1.3, the secure self-hosted invasive debug interface allows normal world attackers to cause a denial of service (secure world panic) via vectors involving debug exceptions and debug registers.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.0% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)