CVE-2026-26453 (GCVE-0-2026-26453)

Vulnerability from cvelistv5 – Published: 2026-08-27 00:00 – Updated: 2026-09-01 19:00
VLAI
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 19:00 UTC
CWE
  • n/a
  • CWE-476 - NULL Pointer Dereference
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2313 records in the last 180 days details
References
Show details on NVD website
To clipboard 

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