What is CVE-2018-12679?

CVE-2018-12679 is a high-severity vulnerability in Coapthon3 Project, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2019-04-02.

How severe is CVE-2018-12679?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-12679 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Coapthon3 Project

CVE-2018-12679

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.

Vulnerability class: Insecure Deserialization

Published 2019-04-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.1th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Coapthon3 Project — versions 1.0, 1.0.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

github.com/Tanganelli/CoAPthon3/issues/16 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-12679?: CVE-2018-12679 is a high-severity vulnerability in Coapthon3 Project, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2019-04-02.
How severe is CVE-2018-12679?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-12679 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.