CVE-2019-9971

PoC —

CVSS 3.1

8.8 high

EPSS

2%p76

Published

Jun 7, 2022 (Jun 7, 2022)

Modified

Jun 17, 2026

Description

PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an attacker to gain root privileges by using sudo with the tcpdump command, without a password. This occurs because the -z (aka postrotate-command) option to tcpdump can be unsafe when used in conjunction with sudo.

Vendors: 3cx debian
Products: phone system firmware, debian linux
Weakness: CWE-269
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.7%)

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