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CVE-2020-12124

75
FAUCET Score

CVE-2020-12124 is a critical remote command-line injection vulnerability affecting WAVLINK WN530H4 routers, specifically within the /cgi-bin/live_api.cgi endpoint. This flaw allows an unauthenticated attacker to execute arbitrary Linux commands with root privileges, posing a severe risk to device integrity and data. With a CVSS score of 9.8 (Critical) and an EPSS score indicating high exploitability, this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required. While not currently listed on CISA's KEV catalog or showing active exploitation, public Nuclei templates exist, and its high FAUCET Risk Score of 99/100 suggests a significant threat.

Impacted Technologies

VendorProductVersion(s)CPE
m30h4.v5030.190403CPE matchmatch criteria
cpe:2.3:o:wavlink:wn530h4_firmware:m30h4.v5030.190403:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
74.65%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2020-12124 · Dec 28, 2023
This CVE's current EPSS score of 0.7465 is in the 98th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cerne.xyz / bugs/CVE-2020-12124
Third Party Advisory
wavlink.com / en_us/product/WL-WN530H4.html
ProductVendor Advisory