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CVE-2025-65494

nvd nist
Published: Nov 24, 2025Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (1)

Products: Libcoap: Libcoap
1 product
Libcoap
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Version 4.3.5

References (2)

Source: cve@mitre.org
Issue Tracking
Source: cve@mitre.org
Issue TrackingPatch

Timeline

No history available yet.