{"id":"CVE-2021-3581","aliases":["EUVD-2021-26890"],"status":"published","title":"Buffer Access with Incorrect Length Value in zephyr","description":"Buffer Access with Incorrect Length Value in zephyr. Zephyr versions \u003e= \u003e=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","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00349,"percentile":0.28758,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1284","CWE-805"],"published":"2021-10-05T20:50:18Z","modified":"2026-06-17T04:05:22Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]}],"sources":{"cve":[{"id":"CVE-2021-3581","title":"Buffer Access with Incorrect Length Value in zephyr","description":"Buffer Access with Incorrect Length Value in zephyr. Zephyr versions \u003e= \u003e=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","status":"published","published":"2021-10-05T20:50:18.826Z","modified":"2024-09-16T19:05:46.027Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-805"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-26890","description":"Buffer Access with Incorrect Length Value in zephyr. Zephyr versions \u003e= \u003e=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","status":"published","published":"2021-10-05T20:50:18Z","modified":"2024-09-16T19:05:46Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:26.31684Z"}],"nvd":[{"id":"CVE-2021-3581","description":"Buffer Access with Incorrect Length Value in zephyr. Zephyr versions \u003e= \u003e=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","status":"published","published":"2021-10-05T21:15:09.407Z","modified":"2026-06-17T04:05:22.98Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-805","CWE-1284"],"updated_at":"2026-11-02T14:06:59.314106Z"}]}}