CVE-2025-65496
NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.
| Software | From | Fixed in |
|---|---|---|
| libcoap / libcoap | 4.3.5 | 4.3.5.x |
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