An issue in the server_handle_regular function of the test_coap_server.c file within the FreeCoAP project allows remote attackers to cause a Denial of Service through specially crafted packets.
Buffer Overflow in coap_msg.c in FreeCoAP allows remote attackers to execute arbitrary code or cause a denial of service (stack buffer overflow) via a crafted packet.
An issue in coap_msg.c in Keith Cullen's FreeCoAP v.0.7 allows remote attackers to cause a Denial of Service or potentially disclose information via a specially crafted packet.