CVE-2026-26453

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapserverhandlesession function when processing COAP messages containing URIPATH options with NULL data pointers. When the server searches for a URIPATH option matching the string "separate", ...

CVE-2026-26459

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

CVE-2026-26456

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5. The issue is caused by a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes withou...

CVE-2026-26457

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapdumpmsg function when processing COAP messages containing options with zero length...

CVE-2026-26452

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 lcontains a vulnerability in the option parsing logic that causes a segmentation fault when processing COAP messages containing invalid option numbers...

CVE-2026-26459

ccoap (a C library for the CoAP protocol) at commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a segmentation fault in its option parsing logic when processing malformed CoAP messages with insufficient option data. The vulnerability is reachable over the network with no authentication or u...

CVE-2026-26453

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapserverhandlesession function when processing COAP messages containing URIPATH options with NULL data pointers. When the server searches for a URIPATH option matching the string "separate", ...

EUVD-2026-67099

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

EUVD-2026-67097

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5. The issue is caused by a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes withou...

EUVD-2026-67098

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapdumpmsg function when processing COAP messages containing options with zero length...

CVE-2026-26452

ccoap at commit 77f55c4b contains a segmentation fault in its option parsing logic triggered when processing CoAP messages with invalid option numbers . The vulnerability is reachable over the network with no privileges required and no user interaction, leading to a high availability impact (deni...

CVE-2026-26456

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap (commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5). The root cause is a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes wi...

CVE-2026-26457

ccoap (commit 77f55c4b) is vulnerable to a null pointer dereference in the coap_dump_msg() function when processing COAP messages containing options with zero length. The flaw requires no authentication or user interaction and is reachable over the network, leading to a high availability impact (...

CVE-2026-26456

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5. The issue is caused by a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes withou...

CVE-2026-26452

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 lcontains a vulnerability in the option parsing logic that causes a segmentation fault when processing COAP messages containing invalid option numbers...

CVE-2026-26459

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

CVE-2026-26453

ccoap at commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference in the coap_server_handle_session() function. When processing COAP messages, the server searches for a URI_PATH option matching the string "separate" and directly calls strncmp() on option_list[i].data wi...

CVE-2026-26457

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapdumpmsg function when processing COAP messages containing options with zero length...

EUVD-2026-67095

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 lcontains a vulnerability in the option parsing logic that causes a segmentation fault when processing COAP messages containing invalid option numbers...

EUVD-2026-67096

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coapserverhandlesession function when processing COAP messages containing URIPATH options with NULL data pointers. When the server searches for a URIPATH option matching the string "separate", ...