CVE-2026-2615
Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injection
- State
- Published
- Severity
- 8.6 High
- Published
- Feb 17, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulDB |
| 3.1 | 7.2 High | 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 | VulDB |
| 3.0 | 7.2 High | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 8.3 High | AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-NU516U1Wavlink |
|
References
- VDB-346265 | Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injectionvdb-entrytechnical-description
- VDB-346265 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #751047 | Wavlink NU516U1 V251208 Command Injectionthird-party-advisory
- https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.mdrelated
- https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.md#expexploit
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