CVE-2026-40337
5.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| camelot-os | sentry-kernel | < 0.4.7 | affected |
Weaknesses
- CWE-283: CWE-283: Unverified Ownership
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/camelot-os/sentry-kernel/security/advisories/GHSA-5hgv-rg2f-79pg
- https://github.com/camelot-os/sentry-kernel/pull/108
- https://github.com/camelot-os/sentry-kernel/commit/150b7edd2c5b0da0a8baeed3135ddde613b08081
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