← Vulnerability feed

Vulnerability record · CVE-2020-15490 · published 1 July 2020

CVE-2020-15490: Wavlink wl-wn530hg4 firmware classic buffer overflow vulnerability

Wavlink · Wl Wn530hg4 Firmware

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.)

9.8 CVSS 3.1 Critical EPSS 3.7% · top 10.6% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score, v2 10.0
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.)

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

Track CVE-2020-15490 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-34045Wavlink wl-wn530hg4 firmware hard-coded credentials vulnerabilityWavlink WN530HG4 M30HG4.V5030.191116 was discovered to contain a hardcoded encryption/decryption key for its configuration files at /etc_ro/lighttpd/…EPSS 3.4%9.8CVE-2020-15489Wavlink wl-wn530hg4 firmware os command injection vulnerabilityAn issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple shell metacharacter injection vulnerabilities exist in CGI scrip…EPSS 3.7%8.8CVE-2020-10971Wavlink wl-wn575a3 firmware improper input validation vulnerabilityAn issue was discovered on Wavlink Jetstream devices where a crafted POST request can be sent to adm.cgi that will result in the execution of the sup…EPSS 2.7%7.5CVE-2022-48166Wavlink wl-wn530hg4 firmware missing authorization vulnerabilityAn access control issue in Wavlink WL-WN530HG4 M30HG4.V5030.201217 allows unauthenticated attackers to download configuration data and log files and …EPSS 2.8%7.5CVE-2022-34047Wavlink wl-wn530hg4 firmware exposure of resource to wrong sphere vulnerabilityAn access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows attackers to obtain usernames and passwords via view-source:http://IP_ADDRESS/…EPSS 22%7.5CVE-2020-12266Wavlink wl-wn579g3 firmware missing authentication for critical function vulnerabilityAn issue was discovered where there are multiple externally accessible pages that do not require any sort of authentication, and store system informa…EPSS 1.8%5.3CVE-2022-34049Wavlink wl-wn530hg4 firmware vulnerabilityAn access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows unauthenticated attackers to download log files and configuration data.EPSS 2.7%5.5CVE-2025-43520Apple OS kernel memory corruption via malicious appA memory corruption flaw (classic buffer overflow) in Apple's kernel was fixed across iOS, iPadOS, macOS, tvOS, visionOS and watchOS. A malicious app…KEVEPSS 0.43%analysed

Source: NIST National Vulnerability Database (record CVE-2020-15490), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.