CVE-2026-3704

Wavlink NU516U1 Incomplete Fix CVE-2025-10959 firewall.cgi sub_405B2C command injection

HIGH
7.2
CVSS Score
Published: March 8, 2026 at 03:28 AM UTC
Updated: June 17, 2026 at 10:44 AM UTC
2 products affected across 1 vendorWl NU516U1 FirmwareWL-NU516U1

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Severity
HIGH7.2
Exploit prediction
EPSS 5%
SSVC
No known exploit

Description

A vulnerability has been found in Wavlink NU516U1 251208. This vulnerability affects the function sub_405B2C of the file /cgi-bin/firewall.cgi of the component Incomplete Fix CVE-2025-10959. The manipulation leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.349650
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.349650
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.759233
RelatedExploitThird Party Advisory
Source: cverecord
https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/wavlink_DMZ.md

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-77CWE-74

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