Vulnerability Description
ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_server_handle_session() function when processing COAP messages containing URI_PATH options with NULL data pointers. When the server searches for a URI_PATH option matching the string "separate", it directly calls strncmp() on option_list[i].data without checking if the pointer is NULL. This causes a segmentation fault when the option's data field is NULL.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/ipflavors/ccoap
- https://github.com/songxpu/bug_report/blob/master/CoAP/ccoap/VULNERABILITY_REPOR
- https://github.com/songxpu/bug_report/blob/master/CoAP/ccoap/VULNERABILITY_REPOR
FAQ
What is CVE-2026-26453?
CVE-2026-26453 is a vulnerability with a CVSS score of 7.5 (HIGH). ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_server_handle_session() function when processing COAP messages containing URI_PATH options ...
How severe is CVE-2026-26453?
CVE-2026-26453 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-26453?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.