RCE in Wavlink Wl-Wn579x3-C
CVE-2026-3716
A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This vulnerability affects the function sub_401AD4 of the file /cgi-bin/adm.cgi. Executing a manipulation of the argument Hostname can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 20260226 is able to resolve this issue. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (13.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Wavlink Wl-wn579x3-c — versions 231124, 20260226
- Wavlink Wl-wn579x3-c_firmware — versions 231124
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (patch, Broken Link)
Frequently asked questions
- What is CVE-2026-3716?
- CVE-2026-3716 is a low-severity vulnerability in Wavlink Wl-Wn579x3-C, classified under Cross-site Scripting. CVSS score: 2.4/10. Published 2026-03-08.
- How severe is CVE-2026-3716?
- Low severity. CVSS v3 base score is 2.4 out of 10.