CVE-2026-18590: Wavlink WL-NU516U1 Admin Password adm.cgi set_sys_adm os command injection

Published Aug 3, 2026
·
Updated

A vulnerability was determined in Wavlink WL-NU516U1 708c073-mt7628. Affected is the function setsysadm of the file adm.cgi of the component Admin Password Handler. This manipulation causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Affected Software

1 affected component
Wavlink WL-NU516U1

Event History

Aug 3, 2026
CVE Published
via MITRE·06:45 AM
Data Sourced
via MITRE·06:45 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:17 AM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-18590?

The severity of CVE-2026-18590 is classified as low with a CVSS score of 2.1.

2

What type of vulnerability is CVE-2026-18590?

CVE-2026-18590 is an OS command injection vulnerability affecting the Wavlink WL-NU516U1.

3

How can I mitigate CVE-2026-18590?

To mitigate CVE-2026-18590, change the default admin password and ensure you have the latest firmware update installed.

4

Who is affected by CVE-2026-18590?

CVE-2026-18590 affects users of the Wavlink WL-NU516U1 wireless adapter.

5

Can CVE-2026-18590 be exploited remotely?

Yes, CVE-2026-18590 can be exploited remotely, allowing an attacker to execute OS commands.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203