CVE-2026-15757

Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router

Published Jul 14, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
A security flaw was discovered in the NETGEAR DGND3700v1 that could
allow someone on the same local WiFi network to send unauthorized commands to
the device.



This issue was identified through testing in a controlled research
environment using a simulated version of the router's software and has not been
confirmed on physical production devices.

Remediation

Vendor Solution

NETGEAR DGND3700v1 has reached End-of-Support phase, and no further security updates are planned. NETGEAR strongly recommends replacing these devices with newer NETGEAR models to ensure continued security support and updates.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Netgear
Netgear dgnd3700
Vendors & Products Netgear
Netgear dgnd3700
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A security flaw was discovered in the NETGEAR DGND3700v1 that could allow someone on the same local WiFi network to send unauthorized commands to the device. This issue was identified through testing in a controlled research environment using a simulated version of the router's software and has not been confirmed on physical production devices.
Title Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NETGEAR
Published
Updated
Jul 15, 2026, 4:50 PM
Reserved
Jul 14, 2026, 4:28 PM
Status
Deferred
Published
Jul 14, 2026, 6:17 PM
Modified
Oct 24, 2026, 9:10 PM