CVE-2026-2526 Wavlink WL-WN579A3 wireless.cgi multi_ssid command injection

Medium 5.3 Published 16 Feb 2026 Updated 23 Feb 2026

Remote attackers can execute arbitrary commands on Wavlink WL-WN579A3 routers via the wireless.cgi script, posing a critical security risk.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-2526?

CVE-2026-2526 is a medium-severity command injection vulnerability in Wavlink WL-WN579A3, published on 16 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Wavlink WL-WN579A3 up to 20210219. This impacts the function multi_ssid of the file /cgi-bin/wireless.cgi. Performing a manipulation of the argument SSID2G2 results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-2526?

It affects 1 product.

Products include Wavlink Wl-Wn579a3 Firmware.

How do I fix CVE-2026-2526?

No fix has been published for CVE-2026-2526 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-2526 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2526 exists.

Sources

Also known as GHSA-43wm-f3cq-hfrw.