Vulnerability Database

314,496

Total vulnerabilities in the database

CVE-2025-65499

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.

  • Published: Nov 24, 2025
  • Updated: Nov 25, 2025
  • CVE: CVE-2025-65499
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWEs:

Software From Fixed in
libcoap / libcoap 4.3.5 4.3.5.x