CVE-2026-2527: Wavlink Wl-WN579A3 Firmware

Critical severity, CVSS 9.8. EPSS: 8.7% chance of exploitation in the next 30 days.

A vulnerability was determined in Wavlink WL-WN579A3 up to 20210219. Affected is an unknown function of the file /cgi-bin/login.cgi. Executing a manipulation of the argument key can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Wavlink Wl-WN579A3 Firmware: up to and including 2021-02-19

Published 2026-02-16. Last modified 2026-06-17.