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CVE-2026-15757— Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router

Quick assessment

Affected
NETGEAR DGND3700v1
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NETGEAR dgnd3700是美国NETGEAR公司的一款无线路由器。 NETGEAR DGND3700 V1.0.0.17及之前版本存在输入验证错误漏洞，该漏洞源于输入验证错误，可能导致同一本地WiFi网络上的用户向设备发送未授权命令。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
NETGEAR DGND3700v1 ≤ V1.0.0.17 affected
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I. Basic Information for CVE-2026-15757

Vulnerability Information
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Vulnerability Title
Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
NETGEAR DGND3700 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NETGEAR dgnd3700是美国NETGEAR公司的一款无线路由器。 NETGEAR DGND3700 V1.0.0.17及之前版本存在输入验证错误漏洞，该漏洞源于输入验证错误，可能导致同一本地WiFi网络上的用户向设备发送未授权命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NETGEAR DGND3700v1 0 ~ V1.0.0.17 -

II. Public POCs for CVE-2026-15757

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III. Intelligence Information for CVE-2026-15757

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Vendor Advisories for CVE-2026-15757 (1)

Vendor Pages for CVE-2026-15757 (1)

Same Patch Batch · NETGEAR · 2026-07-14 · 6 CVEs total

CVE-2026-62655 A DoS vulnerability due to stack overflow exists in certain NETGEAR Orbi models
CVE-2026-62656 Post-authenticated command injection vulnerability found in certain NETGEAR RAX models
CVE-2026-62659 Authenticated users can make unauthorized changes on NETGEAR WAX333 Access Points
CVE-2026-62658 Post-authentication Command Injection Vulnerability in certain Nighthawk RAX series models
CVE-2026-62657 Certificate validation vulnerability in NETGEAR Gaming Router and certain Nighthawk models

IV. Related Vulnerabilities

Same vendor: NETGEAR
Same weakness: CWE-20

V. Comments for CVE-2026-15757

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