{"affected":[{"affectedData":[{"product":"zephyr","vendor":"zephyrproject-rtos","versions":[{"lessThan":"unspecified","status":"affected","version":">=2.5.0","versionType":"custom"}]}],"source":"vulnerabilities@zephyrproject.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*","matchCriteriaId":"F20F7320-1032-4FA2-B539-3D7EED5E091B","versionEndExcluding":"2.6.0","versionStartIncluding":"2.5.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Buffer Access with Incorrect Length Value in zephyr. Zephyr versions >= >=2.5.0 contain Buffer Access with Incorrect Length Value (CWE-805). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5"},{"lang":"es","value":"Acceso al búfer con un valor de longitud incorrecto en zephyr. Zephyr versiones posteriores a 2.5.0 incluyéndola, contienen Acceso al Buffer con Valor de Longitud Incorrecto (CWE-805). Para más información, consulte https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5"}],"id":"CVE-2021-3581","lastModified":"2026-06-17T04:05:22.980","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"ADJACENT_NETWORK","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":5.8,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:A/AC:L/Au:N/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":6.5,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"HIGH","baseScore":7.0,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":0.4,"impactScore":6.0,"source":"vulnerabilities@zephyrproject.org","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-10-05T21:15:09.407","references":[{"source":"vulnerabilities@zephyrproject.org","tags":["Patch","Vendor Advisory"],"url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5"}],"sourceIdentifier":"vulnerabilities@zephyrproject.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-805"}],"source":"vulnerabilities@zephyrproject.org","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-1284"}],"source":"nvd@nist.gov","type":"Primary"}]}