CVE-2025-65501
MEDIUM4.3EPSS 0.14%Published: 11/24/2025Modified: 4/28/2026
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.
Affected packages (2)
- Debian/libcoap2from 0
- Debian/libcoap3from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |