VULNERABILITY INTELLIGENCE
CVE-2026-26453
CVSS score7.5 HIGH
EPSS probability0.49%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-476