AUGUST 4, 2026
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Case File

CVE-2025-65496

MEDIUM · CVSS 4.3 EPSS 0.26% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-11-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects OpenSSL. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-65496
Severity
MEDIUM
CVSS
4.3
EPSS
0.26%
OpenSSL

Original NVD Description

NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.

Related CVEs

Other vulnerabilities affecting the same vendor(s)