ZeroMQ libzmq 4.3.3 has a heap-based buffer overflow in zmq::tcp_read, a different vulnerability than CVE-2021-20235.
https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yaml
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042
Source: Mitre, NVD
Published: 2021-07-01
Updated: 2021-07-06
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00539