What is CVE-2020-24354?

CVE-2020-24354 is a high-severity vulnerability in Zyxel Vmg5313-B30b, classified under OS Command Injection. CVSS score: 8.8/10. Published 2020-08-31.

How severe is CVE-2020-24354?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Zyxel Vmg5313-B30b

CVE-2020-24354

Zyxel VMG5313-B30B router on firmware 5.13(ABCJ.6)b3_1127, and possibly older versions of firmware are affected by shell injection.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-08-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.zyxel.com/support/security_advisories.shtml (Vendor Advisory)
blog.somegeneric.ninja/Zyxel_VMG5153_B30B (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-24354?: CVE-2020-24354 is a high-severity vulnerability in Zyxel Vmg5313-B30b, classified under OS Command Injection. CVSS score: 8.8/10. Published 2020-08-31.
How severe is CVE-2020-24354?: High severity. CVSS v3 base score is 8.8 out of 10.