{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40337","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-10T22:50:01.358Z","datePublished":"2026-04-17T23:51:09.866Z","dateUpdated":"2026-04-20T16:13:48.908Z"},"containers":{"cna":{"title":"Sentry kernel has incomplete ownership check for IRQ line manipulation","problemTypes":[{"descriptions":[{"cweId":"CWE-283","lang":"en","description":"CWE-283: Unverified Ownership","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/camelot-os/sentry-kernel/security/advisories/GHSA-5hgv-rg2f-79pg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/camelot-os/sentry-kernel/security/advisories/GHSA-5hgv-rg2f-79pg"},{"name":"https://github.com/camelot-os/sentry-kernel/pull/108","tags":["x_refsource_MISC"],"url":"https://github.com/camelot-os/sentry-kernel/pull/108"},{"name":"https://github.com/camelot-os/sentry-kernel/commit/150b7edd2c5b0da0a8baeed3135ddde613b08081","tags":["x_refsource_MISC"],"url":"https://github.com/camelot-os/sentry-kernel/commit/150b7edd2c5b0da0a8baeed3135ddde613b08081"}],"affected":[{"vendor":"camelot-os","product":"sentry-kernel","versions":[{"version":"< 0.4.7","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-17T23:51:09.866Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-5hgv-rg2f-79pg","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-20T16:13:39.095832Z","id":"CVE-2026-40337","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-20T16:13:48.908Z"}}]}}