Vulnerability Database

309,961

Total vulnerabilities in the database

CVE-2023-6936

In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).

  • Published: Feb 20, 2024
  • Updated: Nov 16, 2025
  • CVE: CVE-2023-6936
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N