What is CVE-2020-12124?

CVE-2020-12124 is a critical-severity vulnerability in Wavlink Wn530h4, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-10-02.

How severe is CVE-2020-12124?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-12124 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Wavlink Wn530h4

CVE-2020-12124

A remote command-line injection vulnerability in the /cgi-bin/live_api.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary Linux commands as root without authentication.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-10-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.747 (99.5th percentile), scored 2026-10-17.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.747 · newest: 0.747 · change: 0.000

Affected products

Wavlink Wn530h4
Wavlink Wn530h4 Firmware — versions m30h4.v5030.190403

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

www.wavlink.com/en_us/product/WL-WN530H4.html (Product, Vendor Advisory)
cerne.xyz/bugs/CVE-2020-12124 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-12124?: CVE-2020-12124 is a critical-severity vulnerability in Wavlink Wn530h4, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-10-02.
How severe is CVE-2020-12124?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-12124 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.