CVE-2025-10963: Wavlink Wl-NU516U1 Firmware

High severity, CVSS 8.8. EPSS: 6.8% chance of exploitation in the next 30 days.

A security flaw has been discovered in Wavlink NU516U1 M16U1_V240425. Affected is the function sub_4016F0 of the file /cgi-bin/firewall.cgi. The manipulation of the argument del_flag results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Wavlink Wl-NU516U1 Firmware: version m16u1_v240425 only

Published 2025-09-25. Last modified 2026-06-17.