VULNERABILITY INTELLIGENCE

CVE-2025-65499

CVSS score4.3 MEDIUM
EPSS probability0.28%
CISA KEVNot currently listed
Published2025-11-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Description

Array index error in tls_verify_call_back() 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_ex_data_X509_STORE_CTX_idx() to return -1.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-129

Primary references