NETGEAR DGND3700v1 up to 1.0.0.17 WiFi input validation

Summaryinfo

A vulnerability was found in NETGEAR DGND3700v1 up to 1.0.0.17 and classified as very critical. Impacted is an unknown function of the component WiFi. Executing a manipulation can lead to input validation. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is tracked as CVE-2026-15757. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in NETGEAR DGND3700v1 up to 1.0.0.17. It has been declared as very critical. This vulnerability affects an unknown code of the component WiFi. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at netgear.com. This vulnerability was named CVE-2026-15757 since 07/14/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/14/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Wireless LAN Software

Vendor

• NETGEAR

Name

• DGND3700v1

Version

• 1.0.0.0
• 1.0.0.1
• 1.0.0.2
• 1.0.0.3
• 1.0.0.4
• 1.0.0.5
• 1.0.0.6
• 1.0.0.7
• 1.0.0.8
• 1.0.0.9
• 1.0.0.10
• 1.0.0.11
• 1.0.0.12
• 1.0.0.13
• 1.0.0.14
• 1.0.0.15
• 1.0.0.16
• 1.0.0.17

License

• commercial

Support

• end of life

Website

• Vendor: https://www.netgear.com/

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