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CVE-2026-3661

MEDIUM CVSS 4.0: 5.1 EPSS 0.23%
Updated Mar 07, 2026
Wavlink
Parameter Value
CVSS 5.1 (MEDIUM)
Type CWE-77 (Command Injection), CWE-74 (Injection)
Vendor Wavlink
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0