Vulnerability Database

308,485

Total vulnerabilities in the database

CVE-2020-36400

ZeroMQ libzmq 4.3.3 has a heap-based buffer overflow in zmq::tcp_read, a different vulnerability than CVE-2021-20235.

  • Published: Jul 1, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-36400
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.8
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
zeromq / libzmq 4.3.3 4.3.3.x