{"id":"CVE-2018-12680","aliases":["EUVD-2019-0028","GHSA-5xc6-fpc7-4qvg","PYSEC-2019-165"],"status":"published","title":"CoAPthon DoS due to Exceptions","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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":0.01503,"percentile":0.74507,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-502"],"published":"2019-04-02T19:03:00Z","modified":"2026-10-20T10:50:18Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"coapthon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.0.2"}]}]},{"source":"osv","ecosystem":"PyPI","package":"coapthon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.0.2"}]}],"versions":["4.0.0","4.0.1","4.0.2"]},{"source":"osv","ecosystem":"PyPI","package":"coapthon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1"}]}],"versions":["4.0.0","4.0.1","4.0.2"]}],"products":[{"vendor":"coapthon_project","product":"coapthon"}],"references":[{"url":"https://github.com/Tanganelli/CoAPthon/issues/135","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12680","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5xc6-fpc7-4qvg","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/coapthon/PYSEC-2019-165.yaml","tags":["web"]},{"url":"https://github.com/Tanganelli/CoAPthon","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-12680","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T19:03:00Z","modified":"2024-08-05T08:45:02.212Z","updated_at":"2026-11-02T14:35:06.320867Z"}],"euvd":[{"id":"EUVD-2019-0028","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T19:03:00Z","modified":"2024-08-05T08:45:02Z","updated_at":"2026-11-03T02:39:51.126842Z"}],"ghsa":[{"id":"GHSA-5xc6-fpc7-4qvg","title":"CoAPthon DoS due to Exceptions","description":"The `Serialize.deserialize()` method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-08T15:19:01Z","modified":"2024-09-13T14:31:59Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-400","CWE-502"],"updated_at":"2026-11-02T14:38:02.773864Z"}],"nvd":[{"id":"CVE-2018-12680","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T20:29:00.38Z","modified":"2026-06-17T01:38:10.16Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:04:55.136632Z"}],"osv":[{"id":"CVE-2018-12680","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T20:29:00.38Z","modified":"2026-10-20T10:50:18.964629384Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.934182Z"},{"id":"GHSA-5xc6-fpc7-4qvg","title":"CoAPthon DoS due to Exceptions","description":"The `Serialize.deserialize()` method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-08T15:19:01Z","modified":"2024-09-13T14:55:50.624431Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-400","CWE-502"],"updated_at":"2026-11-02T15:46:38.911014Z"},{"id":"PYSEC-2019-165","description":"The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T20:29:00Z","modified":"2023-11-08T03:59:50.835905Z","updated_at":"2026-11-02T15:52:52.192131Z"}]}}