{"id":"CVE-2021-33889","aliases":["EUVD-2021-20562","GHSA-qwc4-6769-3rhp"],"status":"published","title":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an...","description":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00327,"percentile":0.26073,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-07-02T18:34:38Z","modified":"2026-06-17T03:55:20Z","products":[{"vendor":"openthread","product":"wpantund"}],"references":[{"url":"https://github.com/openthread/wpantund/releases","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0019/FEYE-2021-0019.md","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/openthread/wpantund/issues/502","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33889"},{"url":"https://github.com/advisories/GHSA-qwc4-6769-3rhp"}],"sources":{"cve":[{"id":"CVE-2021-33889","description":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.","status":"published","published":"2021-07-02T18:34:38Z","modified":"2024-08-04T00:05:52.108Z","updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20562","description":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.","status":"published","published":"2021-07-02T18:34:38Z","modified":"2024-08-04T00:05:52Z","updated_at":"2026-11-03T03:24:33.318275Z"}],"ghsa":[{"id":"GHSA-qwc4-6769-3rhp","title":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an...","description":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.","status":"published","published":"2022-05-24T19:06:48Z","modified":"2023-01-30T05:00:35Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:14.069279Z"}],"nvd":[{"id":"CVE-2021-33889","description":"OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.","status":"published","published":"2021-07-02T19:15:08.217Z","modified":"2026-06-17T03:55:20.463Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}