Security Advisory
CVE-2025-65501
4.3
MEDIUM
Vulnerability Description
Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.
Published Date
November 24, 2025
Official Source
NIST NVD Advisory