Low 3.5Published Mar 15, 2026

CVE-2026-4166Wavlink WL-NU516U1 login.cgi sub_404F68 cross site scripting

Updated under an hour ago (Oct 25, 2026, 9:10 PM ET)

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It affects Wavlink WL-NU516U1. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Wavlink WL-NU516U1

Exploited in the last 30 days

A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

CVSS: 3.5 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
Weakness (CWE): CWE-79, CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Mar 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wavlink WL-NU516U1 wavlink:wl-nu516u1_firmware	240425	CNA record

References

https://vuldb.com/?id.351073vdb-entry, technical-description
https://vuldb.com/?ctiid.351073signature, permissions-required
https://vuldb.com/?submit.769652third-party-advisory
https://vuldb.com/?submit.769653third-party-advisory
https://github.com/Litengzheng/vul_db/blob/main/WL-NU516U1/vul_14/README.mdrelated
https://github.com/Litengzheng/vul_db/blob/main/WL-NU516U1/vul_15/README.mdexploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.