VULNERABILITY INTELLIGENCE

CVE-2025-65493

CVSS score7.5 HIGH
EPSS probability0.40%
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 src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.

Weakness classification

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

Primary references