{"cve":"CVE-2018-12680","nvd":{"published":"2019-04-02T20:29:00.380","modified":"2026-06-17T01:38:10.160","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-502"],"references":["https://github.com/Tanganelli/CoAPthon/issues/135","https://github.com/Tanganelli/CoAPthon/issues/135"],"products":["coapthon_project:coapthon"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2018-12680","score":0.01503,"percentile":0.74326,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5xc6-fpc7-4qvg","url":"https://osv.dev/vulnerability/GHSA-5xc6-fpc7-4qvg","summary":"CoAPthon DoS due to Exceptions","modified":"2024-09-13T14:55:50.624431Z","packages":[{"ecosystem":"PyPI","name":"coapthon","purl":"pkg:pypi/coapthon","ranges":["<=4.0.2"],"fixed":[]}]},{"id":"PYSEC-2019-165","url":"https://osv.dev/vulnerability/PYSEC-2019-165","summary":"","modified":"2023-11-08T03:59:50.835905Z","packages":[{"ecosystem":"PyPI","name":"coapthon","purl":"pkg:pypi/coapthon","ranges":[">=3.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}