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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.

PUBLISHED Reserved 2025-11-18 | Published 2025-11-24 | Updated 2025-11-24 | Assigner mitre

References

github.com/obgm/libcoap/issues/1748

github.com/obgm/libcoap/pull/1750

cve.org (CVE-2025-65501)

nvd.nist.gov (CVE-2025-65501)

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