CVE-2026-40337EPSS p4.5%

CVE-2026-40337CVE-2026-40337

Description

The Sentry kernel is a high security level micro-kernel implementation made for high security embedded systems. A given task with one of the DEV or IO capability is able to interact with another task's IRQ line through the __sys_int_* syscall familly. Prior to version 0.4.7, this can lead to DoS and covert-channels between this task and the outer world. A patch is available in version 0.4.7. As a workaround, reduce tasks that have the DEV and IO capability to a single one.

Scoring

CVSS 5.1 ()
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
EPSS0.15% probability of exploitation · percentile 4.5% · 2026-10-27T12:03:15Z
Last modified2026-10-26
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.