{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2021-3966","assignerOrgId":"e2e69745-5e70-4e92-8431-deb5529a81ad","assignerShortName":"zephyr","dateUpdated":"2025-04-09T18:29:11.461Z","dateReserved":"2021-11-16T00:00:00.000Z","datePublished":"2023-01-11T00:00:00.000Z"},"containers":{"cna":{"title":"Usb bluetooth device ACL read cb buffer overflow","datePublic":"2022-02-16T00:00:00.000Z","providerMetadata":{"orgId":"e2e69745-5e70-4e92-8431-deb5529a81ad","shortName":"zephyr","dateUpdated":"2023-01-11T00:00:00.000Z"},"descriptions":[{"lang":"en","value":"usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem."}],"affected":[{"vendor":"zephyrproject-rtos","product":"zephyr","versions":[{"version":"unspecified","lessThanOrEqual":"v3.0","status":"affected","versionType":"custom"}]}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-fv2m"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.6,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"Heap-based Buffer Overflow (CWE-122)","cweId":"CWE-122"}]}],"source":{"defect":["https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-fv2m"]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T17:09:09.756Z"},"title":"CVE Program Container","references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-fv2m","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-09T14:00:22.435063Z","id":"CVE-2021-3966","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-04-09T18:29:11.461Z"}}]}}