Vulnerabilities > CVE-2024-40493 - NULL Pointer Dereference vulnerability in Keith-Cullen Freecoap 1.0
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Null Pointer Dereference in `coap_client_exchange_blockwise2` function in Keith Cullen FreeCoAP 1.0 allows remote attackers to cause a denial of service and potentially execute arbitrary code via a specially crafted CoAP packet that causes `coap_msg_get_payload(resp)` to return a null pointer, which is then dereferenced in a call to `memcpy`.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |