CVE-2026-2615

HIGH 7.2

Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injection

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	wavlink
Product	wl-nu516u1
Published	Feb 17, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-NU516U1

20251208

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.346265 vuldb.com: https://vuldb.com/?ctiid.346265 vuldb.com: https://vuldb.com/?submit.751047 github.com: https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.md github.com: https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/singlePortForwardDelete.md#exp

Credits

🔍 haimianbaobao (VulDB User)