CVE-2026-15757

Adjacent unauthorized command submission via undisclosed validation flaw

Published Jul 14, 2026 · Updated Jul 14, 2026

Improper input validation in NETGEAR DGND3700v1 through 1.0.0.17 allows remote attackers to send unauthorized device commands. NETGEAR has not disclosed the affected interface or the input-validation operation that accepts the commands. Access requires the same local WiFi network, and NETGEAR reproduced the issue only against simulated router software, not physical production hardware.

CVSS severityUnavailable
Unscored
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in NETGEAR DGND3700v1 through 1.0.0.17 allows remote attackers to send unauthorized device commands. NETGEAR has not disclosed the affected interface or the input-validation operation that accepts the commands. Access requires the same local WiFi network, and NETGEAR reproduced the issue only against simulated router software, not physical production hardware.

The record

CVE
CVE-2026-15757
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
NETGEAR
Product
DGND3700v1
Classifications
CWE-20
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=V1.0.0.17

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

NETGEAR · DGND3700v1version=0 <=V1.0.0.17

Published CVSS scores

6.3Netgear, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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