VULNERABILITY INTELLIGENCE

CVE-2025-65494

CVSS score7.5 HIGH
EPSS probability0.26%
CISA KEVNot currently listed
Published2025-11-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-476

Primary references