CVE-2026-26459

Unknown

Published: 27/08/2026(UTC)Translated: 27/08/2026(UTC)NVD NIST

Summary

ccoap (commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5) contains a vulnerability in the option parsing logic that causes a segmentation fault when processing malformed COAP messages with insufficient option data.

Risk Assessment

A remote attacker can send a specially crafted COAP message, causing a service crash (DoS) and potentially disrupting system operation.

Recommendation

Update ccoap to a version containing the fix or apply a workaround by filtering malformed COAP messages.

Original NVD description (English source)

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a vulnerability in the option parsing logic that causes a segmentation fault when processing malformed COAP messages with insufficient option data.