CVE-2026-40337

Published: Apr 18, 2026Modified: Jun 17, 2026Deferred

5.1

Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H

Exploitability: 0.8 / Impact: 4.2

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-283

Unverified Ownership

The product does not properly verify that a critical resource is owned by the proper entity.

References (3)

https://github.com/camelot-os/sentry-kernel/commit/150b7edd2c5b0da0a8baeed3135ddde613b08081

Source: security-advisories@github.com

https://github.com/camelot-os/sentry-kernel/pull/108

Source: security-advisories@github.com

https://github.com/camelot-os/sentry-kernel/security/advisories/GHSA-5hgv-rg2f-79pg

Source: security-advisories@github.com

Timeline

No history available yet.