Vulnerability Details CVE-2025-65494
NULL pointer dereference in get_san_or_cn_from_cert() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted X.509 certificate that causes sk_GENERAL_NAME_value() to return NULL.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 23.8%
CVSS Severity
CVSS v3 Score 7.5