Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.

Project Subscriptions

Vendors Products
Libcoap Subscribe
Libcoap Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 01 Dec 2025 16:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:libcoap:libcoap:4.3.5:-:*:*:*:*:*:*

Wed, 26 Nov 2025 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Libcoap
Libcoap libcoap
Vendors & Products Libcoap
Libcoap libcoap

Mon, 24 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 24 Nov 2025 14:15:00 +0000

Type Values Removed Values Added
Description Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-24T18:28:32.203Z

Reserved: 2025-11-18T00:00:00.000Z

Link: CVE-2025-65501

cve-icon Vulnrichment

Updated: 2025-11-24T18:28:29.435Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-24T14:15:47.950

Modified: 2025-12-01T16:18:11.947

Link: CVE-2025-65501

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-26T11:10:46Z

Weaknesses