Homepage

CVE-2025-65501 Affecting libcoap3 package, versions *

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIANUNSTABLE-LIBCOAP3-14104219
  • published25 Nov 2025
  • disclosed24 Nov 2025
Report a new vulnerability Found a mistake?

Introduced: 24 Nov 2025

NewCVE-2025-65501  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable libcoap3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcoap3 package and not the libcoap3 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.