{"id":"CVE-2020-17528","aliases":["EUVD-2020-9464","GHSA-36mq-qwm2-6rpp"],"status":"published","title":"Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent length","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.03172,"percentile":0.88202,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-12-09T16:35:13Z","modified":"2026-10-24T10:30:19Z","products":[{"vendor":"apache","product":"nuttx"},{"vendor":"apache software foundation","product":"apache nuttx (incubating)"}],"references":[{"url":"https://lists.apache.org/thread.html/r7f4215aba288660b41b7e731b6262c8275fa476e91e527a74d2888ea%40%3Cdev.nuttx.apache.org%3E","tags":["x_refsource_MISC","mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2020/12/09/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17528"},{"url":"https://lists.apache.org/thread.html/r7f4215aba288660b41b7e731b6262c8275fa476e91e527a74d2888ea@%3Cdev.nuttx.apache.org%3E"},{"url":"https://github.com/advisories/GHSA-36mq-qwm2-6rpp"}],"sources":{"cve":[{"id":"CVE-2020-17528","title":"Apache NuttX (incubating) Out of Bound Write from invalid TCP Urgent length","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","status":"published","published":"2020-12-09T16:35:13Z","modified":"2025-02-13T16:27:37.002Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-9464","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","status":"published","published":"2020-12-09T16:35:13Z","modified":"2025-02-13T16:27:37Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"none"}],"updated_at":"2026-11-03T00:03:53.290549Z"}],"ghsa":[{"id":"GHSA-36mq-qwm2-6rpp","title":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and...","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","status":"published","published":"2022-05-24T17:35:31Z","modified":"2023-01-29T05:04:51Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:39.24589Z"}],"nvd":[{"id":"CVE-2020-17528","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","status":"published","published":"2020-12-09T17:15:29.9Z","modified":"2026-06-17T02:59:05.387Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:27.10541Z"}],"osv":[{"id":"CVE-2020-17528","description":"Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.","status":"published","published":"2020-12-09T17:15:29.9Z","modified":"2026-10-24T10:30:19.490074864Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:15.212689Z"}]}}