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Vulnerability · Published Feb 17, 2026 · Assigned by VulDB

CVE-2026-2615Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injection

High 7.2

In plain English

A high-severity command injection in WL-NU516U1 from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 13.4% (higher than 96% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)13.4%top 3.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Wavlink WL-NU516U1 20251208

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References