Unrated severityNVD Advisory· Published Nov 24, 2025· Updated Nov 24, 2025

CVE-2025-65501

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OISM/libcoapdescription
Obgm/Libcoapllm-fuzzy
Range: = 4.3.5
osv-coords
pkg:rpm/opensuse/libcoap&distro=openSUSE%20Tumbleweed
Range: < 4.3.5a-1.1

Patches

Vulnerability mechanics

References

github.com/obgm/libcoap/issues/1748mitre
github.com/obgm/libcoap/pull/1750mitre

News mentions

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