{"id":"CVE-2019-17389","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-17389","generatedAt":"2026-10-27T23:28:53.974Z","title":"This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.","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.","published":"2019-10-09T17:15:10.000Z","lastModified":"2026-06-17T02:23:52.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["riot-os/riot"],"epss":{"score":0.01382,"percentile":0.71965,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/RIOT-OS/RIOT/pull/12382","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/RIOT-OS/RIOT/pull/12382","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-17389","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}