CVE-2020-36400

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CVSS 3.1

9.8 critical

EPSS

2%p78

Published

Jul 1, 2021 (Jul 1, 2021)

Modified

Jun 17, 2026

Description

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

Vendors: zeromq
Products: libzmq
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.8%)

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