CVE-2026-3661

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

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

V2 Legend

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

10 Mar 2026, 16:30

Type Values Removed Values Added
First Time Wavlink wl-nu516u1 Firmware
Wavlink wl-nu516u1
Wavlink
CPE cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:*
cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v240425:*:*:*:*:*:*:*
References () https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md - () https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.349550 - () https://vuldb.com/?ctiid.349550 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.349550 - () https://vuldb.com/?id.349550 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.758227 - () https://vuldb.com/?submit.758227 - Third Party Advisory, VDB Entry
Summary
  • (es) Se ha encontrado una vulnerabilidad en Wavlink WL-NU516U1 240425. Esto afecta a la función ota_new_upgrade del archivo /cgi-bin/adm.cgi. Esta manipulación del argumento model causa inyección de comandos. Es posible iniciar el ataque de forma remota. El exploit ha sido publicado y puede ser utilizado. Se contactó con el fabricante con antelación sobre esta divulgación.

07 Mar 2026, 14:16

Type Values Removed Values Added
New CVE
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
  • wl-nu516u1_firmware
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')