{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "sentry-kernel",
          "vendor": "camelot-os",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.4.7"
            }
          ]
        }
      ],
      "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\u0027s 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."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-283",
              "description": "CWE-283: Unverified Ownership",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T23:51:09.866Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "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"
        }
      ],
      "source": {
        "advisory": "GHSA-5hgv-rg2f-79pg",
        "discovery": "UNKNOWN"
      },
      "title": "Sentry kernel has incomplete ownership check for IRQ line manipulation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40337",
    "datePublished": "2026-04-17T23:51:09.866Z",
    "dateReserved": "2026-04-10T22:50:01.358Z",
    "dateUpdated": "2026-04-17T23:51:09.866Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40337\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-18T00:16:37.667\",\"lastModified\":\"2026-04-18T00:16:37.667\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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\u0027s 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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H\",\"baseScore\":5.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-283\"}]}],\"references\":[{\"url\":\"https://github.com/camelot-os/sentry-kernel/commit/150b7edd2c5b0da0a8baeed3135ddde613b08081\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/camelot-os/sentry-kernel/pull/108\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/camelot-os/sentry-kernel/security/advisories/GHSA-5hgv-rg2f-79pg\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}