CVE-2026-2615CWE-74CWE-77
Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injection
High · published February 17, 2026
What it is
A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
The record
Technical detail
- CVSS v4.0
- 8.6 · HIGH
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- EPSS
- 0.08718 · 95.1th percentile
- Weaknesses
- CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
- Published
- 2026-02-17T13:02Z
EPSS history
Timeline