CVEvulnerability

CVE-2025-65497

4.3 MEDIUM Published 2025-11-24 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-11-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weaknesses
CWE-476

Description

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.

Affected configurations

• libcoap libcoap 4.3.5

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References