{"id":"CVE-2019-17389","aliases":["EUVD-2019-7793","GHSA-52xj-gr8m-2fv8"],"status":"published","title":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read...","description":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01382,"percentile":0.72347,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-10-09T16:06:55Z","modified":"2026-06-17T02:23:52Z","products":[{"vendor":"riot-os","product":"riot"}],"references":[{"url":"https://github.com/RIOT-OS/RIOT/pull/12382","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17389"},{"url":"https://github.com/advisories/GHSA-52xj-gr8m-2fv8"}],"sources":{"cve":[{"id":"CVE-2019-17389","description":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","status":"published","published":"2019-10-09T16:06:55Z","modified":"2024-08-05T01:40:15.229Z","updated_at":"2026-11-02T14:20:24.678649Z"}],"euvd":[{"id":"EUVD-2019-7793","description":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","status":"published","published":"2019-10-09T16:06:55Z","modified":"2024-08-05T01:40:15Z","updated_at":"2026-11-03T02:40:29.78058Z"}],"ghsa":[{"id":"GHSA-52xj-gr8m-2fv8","title":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read...","description":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","status":"published","published":"2022-05-24T16:58:20Z","modified":"2023-01-28T05:07:18Z","updated_at":"2026-11-02T14:44:30.65038Z"}],"nvd":[{"id":"CVE-2019-17389","description":"In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","status":"published","published":"2019-10-09T17:15:10.037Z","modified":"2026-06-17T02:23:52.063Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:31.019577Z"}]}}