CVE-2024-31031

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p57

Published

Apr 17, 2024 (Apr 17, 2024)

Modified

Jun 17, 2026

Description

An issue in `coap_pdu.c` in libcoap 4.3.4 allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow.

Vendors: libcoap fedoraproject
Products: libcoap, fedora
Weakness: CWE-190
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.9%)

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