A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

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Fixes

Solution

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Workaround

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History

Wed, 11 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 10 Mar 2026 16:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:*
cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v240425:*:*:*:*:*:*:*

Mon, 09 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Wavlink wl-nu516u1
Vendors & Products Wavlink wl-nu516u1

Sat, 07 Mar 2026 13:45:00 +0000

Type Values Removed Values Added
Description A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
Title Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection
First Time appeared Wavlink
Wavlink wl-nu516u1 Firmware
Weaknesses CWE-74
CWE-77
CPEs cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
Vendors & Products Wavlink
Wavlink wl-nu516u1 Firmware
References
Metrics cvssV2_0

{'score': 5.8, 'vector': 'AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 4.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-11T16:29:34.044Z

Reserved: 2026-03-06T20:29:01.605Z

Link: CVE-2026-3661

cve-icon Vulnrichment

Updated: 2026-03-11T16:23:16.623Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-07T14:16:05.990

Modified: 2026-03-10T16:30:51.930

Link: CVE-2026-3661

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-09T10:05:28Z

Weaknesses