What is CVE-2026-18590?

CVE-2026-18590 is a medium-severity vulnerability in Wavlink Wl-nu516u1, classified under Command Injection. CVSS score: 6.3/10. Published 2026-08-03.

How severe is CVE-2026-18590?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Wavlink Wl-nu516u1

CVE-2026-18590

A vulnerability was determined in Wavlink WL-NU516U1 708c073-mt7628. Affected is the function set_sys_adm of the file adm.cgi of the component Admin Password Handler. This manipulation causes os command injection. The attack is possible to…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Wavlink Wl-nu516u1 — versions 708c073-mt7628

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (broken-link)
cna@vuldb.com (patch, broken-link)

Frequently asked questions

What is CVE-2026-18590?: CVE-2026-18590 is a medium-severity vulnerability in Wavlink Wl-nu516u1, classified under Command Injection. CVSS score: 6.3/10. Published 2026-08-03.
How severe is CVE-2026-18590?: Medium severity. CVSS v3 base score is 6.3 out of 10.