CVE Catalog

CVE-2026-14296

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.11%

1th percentile - higher than 1% of all known CVEs

Summary

When using the Direct XIP update strategy, the main application image starts other cores (e.g., radio core) based on the currently active slot without additional verification. MCUboot in the bare (upstream) configuration assumes that if there is at least a single slot for each image available, the system is bootable and continues the boot process. This may lead to a situation where MCUboot picks different slots for different images, resulting in booting the main application from one slot and starting the radio image from an unauthenticated slot.

Risk Assessment

Risk of running unauthorized or malicious software on the radio core, potentially leading to system integrity compromise and communication security issues.

Recommendation

Apply patches to MCUboot or configure the update strategy to verify slot authenticity before starting other cores.

Related vulnerabilities

Original NVD description (English source)

When using the Direct XIP update strategy, the main application image starts other cores (i.e. radio core), based on the currently active slot without additional verification. The MCUboot in the bare (upstream) configuration assumes that if there is at least a single slot for each image available, the system is bootable and continues the boot process. This may lead to a situation when MCUboot picks different slot for different images (i.e. (a) for the main application and (b) for the radio image), boots the main application (from slot (a)) that afterwards starts the radio image by providing an address of the unauthenticated slot ((a) instead of (b)).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS