CVE-2020-15490

Name: CVE-2020-15490
Creator: NVD / NIST
Published: 2020-07-01T21:15:11.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.73%

Last modified Jun 17, 2026

CVE-2020-15490 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple buffer overflow vulnerabilities exist in CGI scripts, leading to remote code execution with root privileges. EPSS estimates a 3.73% chance of exploitation in the next 30 days.

Description

An issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple buffer overflow vulnerabilities exist in CGI scripts, leading to remote code execution with root privileges. (The set of affected scripts is similar to CVE-2020-12266.)

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.73%

88.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Wavlink	Wl-Wn530hg4 Firmware	m30hg4.v5030.191116

References

https://gitlab.com/drakylar1/drakylar-cve-list/-/blob/master/Wavlink/CVE-2020-15490_multiple_BoF.txtThird Party Advisory
https://gitlab.com/drakylar1/drakylar-cve-list/-/blob/master/Wavlink/CVE-2020-15490_multiple_BoF.txtThird Party Advisory

Timeline

Published: Jul 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15490?

How severe is CVE-2020-15490?

CVE-2020-15490 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15490?

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-2020-15490?

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

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Source: NVD / NIST