CVE-2020-12127

Name: CVE-2020-12127
Creator: NVD / NIST
Published: 2020-10-02T09:15:13.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.44%

Last modified Jun 17, 2026

CVE-2020-12127 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An information disclosure vulnerability in the /cgi-bin/ExportAllSettings.sh endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to leak router settings, including cleartext login details, DNS settings, and other sensitive information without authentication.. EPSS estimates a 6.44% chance of exploitation in the next 30 days.

Description

An information disclosure vulnerability in the /cgi-bin/ExportAllSettings.sh endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to leak router settings, including cleartext login details, DNS settings, and other sensitive information without authentication.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

6.44%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Wavlink	Wn530h4 Firmware	m30h4.v5030.190403

References

https://cerne.xyz/bugs/CVE-2020-12127Third Party Advisory
https://www.wavlink.com/en_us/product/WL-WN530H4.htmlProduct, Vendor Advisory
https://cerne.xyz/bugs/CVE-2020-12127Third Party Advisory
https://www.wavlink.com/en_us/product/WL-WN530H4.htmlProduct, Vendor Advisory

Timeline

Published: Oct 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12127?

How severe is CVE-2020-12127?

CVE-2020-12127 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.44% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12127?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12127?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST