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.
History

Wed, 02 Sep 2026 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 02 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference Leading to Segmentation Fault in ccoap CoAP Server

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Thu, 27 Aug 2026 17:45:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference Leading to Segmentation Fault in ccoap CoAP Server
Weaknesses CWE-476

Thu, 27 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-08-27T00:00:00.000Z

Updated: 2026-09-01T19:00:54.273Z

Reserved: 2026-02-16T00:00:00.000Z

Link: CVE-2026-26453

cve-icon Vulnrichment

Updated: 2026-09-01T19:00:50.332Z

cve-icon NVD

Status : Deferred

Published: 2026-08-27T17:17:48.033

Modified: 2026-09-01T19:17:20.190

Link: CVE-2026-26453

cve-icon Redhat

No data.