What is CVE-2020-12127?

CVE-2020-12127 is a high-severity vulnerability in Wavlink Wn530h4, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2020-10-02.

How severe is CVE-2020-12127?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2020-12127 known to be exploited?

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

Auth bypass in Wavlink Wn530h4

CVE-2020-12127

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.

Vulnerability class: Broken Authentication

EPSS: 0.074 (93.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Wavlink Wn530h4
Wavlink Wn530h4_firmware — versions m30h4.v5030.190403
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-12127?: CVE-2020-12127 is a high-severity vulnerability in Wavlink Wn530h4, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2020-10-02.
How severe is CVE-2020-12127?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-12127 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.