{"id":"CVE-2018-12679","aliases":["EUVD-2019-0029","GHSA-c6fm-rgw4-8q73","PYSEC-2019-166"],"status":"published","title":"CoAPthon3 vulnerable to Deserialization of Untrusted Data","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, 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":0.01488,"percentile":0.74256,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2019-04-02T18:58:26Z","modified":"2026-10-20T10:50:18Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"coapthon3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"coapthon3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.1"}]}],"versions":["1.0.1"]},{"source":"osv","ecosystem":"PyPI","package":"coapthon3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0"}]}],"versions":["1.0.1","1.0.2"]}],"products":[{"vendor":"coapthon3_project","product":"coapthon3"}],"references":[{"url":"https://github.com/Tanganelli/CoAPthon3/issues/16","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12679","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c6fm-rgw4-8q73","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/coapthon3/PYSEC-2019-166.yaml","tags":["web"]},{"url":"https://github.com/Tanganelli/CoAPthon3","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-12679","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T18:58:26Z","modified":"2024-08-05T08:45:00.668Z","updated_at":"2026-11-02T14:35:06.320867Z"}],"euvd":[{"id":"EUVD-2019-0029","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T18:58:26Z","modified":"2024-08-05T08:45:00Z","updated_at":"2026-11-03T02:39:52.08472Z"}],"ghsa":[{"id":"GHSA-c6fm-rgw4-8q73","title":"CoAPthon3 vulnerable to Deserialization of Untrusted Data","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-08T15:18:57Z","modified":"2024-09-06T15:42:54Z","cvss":[{"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"},{"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"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:01.080229Z"}],"nvd":[{"id":"CVE-2018-12679","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages.","status":"published","published":"2019-04-02T19:29:00.26Z","modified":"2026-06-17T01:38:10.03Z","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-2018-12679","description":"The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP 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