Zyxel VMG5313-B30B router on firmware 5.13(ABCJ.6)b3_1127, and possibly older versions of firmware are affected by shell injection.
https://www.zyxel.com/support/security_advisories.shtml
https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B
Source: Mitre, NVD
Published: 2020-08-31
Updated: 2026-06-17
Base Score: 6.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.0079