CVE-2026-3661

MEDIUM
2026-03-07 [email protected]
4.7
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 10, 2026 - 16:30 vuln.today
Public exploit code
CVE Published
Mar 07, 2026 - 14:16 nvd
MEDIUM 4.7

Tags

Command Injection Wl Nu516u1 Firmware

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.

Analysis

Command injection in Wavlink WL-NU516U1 firmware allows remote attackers with high privileges to execute arbitrary commands through the model parameter in the OTA upgrade function. Public exploit code exists for this vulnerability, and no patch is currently available. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +24
POC: +20

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CVE-2026-3661 vulnerability details – vuln.today
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