CVE-2026-3661

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.

CVSS v3 4.7 MEDIUM
CVSS v2.0 5.8 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:M/C:P/I:P/A:P

Exploitability : 6.4 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication MULTIPLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.349550	Permissions Required VDB Entry
https://vuldb.com/?id.349550	Third Party Advisory VDB Entry
https://vuldb.com/?submit.758227	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v240425:*:*:*:*:*:*:*

cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-07 14:16

Updated : 2026-03-10 16:30

NVD link : CVE-2026-3661

Mitre link : CVE-2026-3661

CVE.ORG link : CVE-2026-3661

JSON object : View

Products Affected

wavlink

wl-nu516u1_firmware
wl-nu516u1

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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Se contact\u00f3 con el fabricante con antelaci\u00f3n sobre esta divulgaci\u00f3n."}], "lastModified": "2026-03-10T16:30:51.930", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v240425:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "44120A31-7BB4-4C48-834B-2C183BC77535"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C697E865-5984-4974-8A11-43CC6940ABFA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}