CVE-2024-40494

Published: Oct 22, 2024Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Buffer Overflow in coap_msg.c in FreeCoAP allows remote attackers to execute arbitrary code or cause a denial of service (stack buffer overflow) via a crafted packet.

Affected (1)

Products: Keith Cullen: Freecoap

Keith Cullen

1 product

Freecoap

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Keith Cullen Freecoap	Version 0.7

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

https://gist.github.com/dqp10515/e9d7d663cb89187bfe7b39bb3aeb0113

Source: cve@mitre.org

Third Party Advisory

https://github.com/dqp10515/security/tree/main/FreeCoAP_bug

Source: cve@mitre.org

Exploit

Timeline

No history available yet.