A command injection vulnerability in the CGI program of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0 could allow a local authenticated attacker to execute arbitrary OS commands on a vulnerable device via a LAN interface.
https://www.zyxel.com/support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml
Source: Mitre, NVD
Published: 2022-04-11
Updated: 2026-06-17
Base Score: 7.7
Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C
Severity: High
Base Score: 8
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00135