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Vulnerability record · CVE-2025-10963 · published 25 September 2025

CVE-2025-10963: Wavlink wl-nu516u1 firmware injection vulnerability

Wavlink · Wl Nu516u1 Firmware

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.

2.1 CVSS 4.0 Low EPSS 6.8% · top 6.2% CWE-74 · InjectionCWE-77 · Command injection
2.1CVSS 4.0 base score, v2 6.5
6.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/singlePortForwardDelete.md ExploitThird Party Advisory
https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/singlePortForwardDelete.md#poc ExploitThird Party Advisory
https://vuldb.com/?ctiid.325831 Permissions RequiredVDB Entry
https://vuldb.com/?id.325831 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.652784 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-10963), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.