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-2026-26456

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

The ccoap library (commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5) contains a vulnerability in its option parsing logic . When processing malformed COAP messages with insufficient option data, the software can experience a segmentation fault . This vulnerability results in a High availability im...

PT-2026-82515

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

PT-2026-82511

Name of the Vulnerable Software and Affected Versions ccoap version 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 Description A flaw in the option parsing logic leads to a segmentation fault—a specific type of crash occurring when a program attempts to access a memory location it is not allowed to—whe...

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", ...

PT-2026-82512

Name of the Vulnerable Software and Affected Versions ccoap version 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 Description A null pointer dereference occurs in the coap server handle session function when processing COAP messages that include URI PATH options with NULL data pointers. The issue aris...

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-2026-26456

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 . The root cause is a race condition occurring between the request dispatch thread and the session cleanup thread when they access shared session list node...

PT-2026-82513

Name of the Vulnerable Software and Affected Versions ccoap version 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 Description A null pointer dereference occurs in the server-side session management logic. This is caused by a race condition—a situation where the timing or order of events affects the...

CVE-2026-26452

The ccoap software (specifically commit 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5) contains a vulnerability in its option parsing logic . Processing COAP messages that contain invalid option numbers can trigger a segmentation fault , leading to a denial of service. The CVSS 3.1 score for this vuln...

PT-2026-82514

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

CVE-2026-26453: NULL Pointer Dereference

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: Out-of-bounds Write

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-2026-26457: NULL Pointer Dereference

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