CVE-2026-15757 (GCVE-0-2026-15757)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:46 – Updated: 2026-07-14 18:02 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router
Summary
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.
Severity
CWE
- CWE-20 - Improper input validation
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NETGEAR | DGND3700v1 |
Affected:
0 , ≤ V1.0.0.17
(custom)
|
Date Public
2026-07-14 00:00
Credits
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "DGND3700v1",
"vendor": "NETGEAR",
"versions": [
{
"lessThanOrEqual": "V1.0.0.17",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Security Research Center (SRC) @ Concordia University"
}
],
"datePublic": "2026-07-14T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA security flaw was discovered in the NETGEAR DGND3700v1 that could\nallow someone on the same local WiFi network to send unauthorized commands to\nthe device.\u003c/p\u003e\u003cp\u003e\u003cspan\u003eThis issue was identified through testing in a controlled research\nenvironment using a simulated version of the router\u0027s software and has not been\nconfirmed on physical production devices.\u003c/span\u003e\u003c/p\u003e"
}
],
"value": "A security flaw was discovered in the NETGEAR DGND3700v1 that could\nallow someone on the same local WiFi network to send unauthorized commands to\nthe device.\n\n\n\nThis issue was identified through testing in a controlled research\nenvironment using a simulated version of the router\u0027s software and has not been\nconfirmed on physical production devices."
}
],
"impacts": [
{
"capecId": "CAPEC-248",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-248 Command Injection"
}
]
},
{
"capecId": "CAPEC-100",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-100 Overflow Buffers"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "UNREPORTED",
"privilegesRequired": "NONE",
"providerUrgency": "AMBER",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "DIFFUSE",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper input validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T18:02:34.655Z",
"orgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
"shortName": "NETGEAR"
},
"references": [
{
"url": "https://www.netgear.com/support/product/dgnd3700v1"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eNETGEAR\u0026nbsp;DGND3700v1\u0026nbsp;has reached End-of-Support phase, and no further security\n updates are planned. NETGEAR\u0026nbsp;strongly recommends replacing these \ndevices with newer NETGEAR models to ensure continued security support \nand updates.\u003c/p\u003e"
}
],
"value": "NETGEAR\u00a0DGND3700v1\u00a0has reached End-of-Support phase, and no further security\n updates are planned. NETGEAR\u00a0strongly recommends replacing these \ndevices with newer NETGEAR models to ensure continued security support \nand updates."
}
],
"source": {
"discovery": "EXTERNAL"
},
"tags": [
"unsupported-when-assigned"
],
"title": "Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router",
"x_generator": {
"engine": "Vulnogram 1.0.3"
}
}
},
"cveMetadata": {
"assignerOrgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
"assignerShortName": "NETGEAR",
"cveId": "CVE-2026-15757",
"datePublished": "2026-07-14T17:46:15.979Z",
"dateReserved": "2026-07-14T16:28:54.296Z",
"dateUpdated": "2026-07-14T18:02:34.655Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-15757\",\"sourceIdentifier\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\",\"published\":\"2026-07-14T18:17:12.707\",\"lastModified\":\"2026-07-14T18:17:12.707\",\"vulnStatus\":\"Received\",\"cveTags\":[{\"sourceIdentifier\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\",\"tags\":[\"unsupported-when-assigned\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security flaw was discovered in the NETGEAR DGND3700v1 that could\\nallow someone on the same local WiFi network to send unauthorized commands to\\nthe device.\\n\\n\\n\\nThis issue was identified through testing in a controlled research\\nenvironment using a simulated version of the router\u0027s software and has not been\\nconfirmed on physical production devices.\"}],\"affected\":[{\"source\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\",\"affectedData\":[{\"vendor\":\"NETGEAR\",\"product\":\"DGND3700v1\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"V1.0.0.17\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:L/U:Amber\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"UNREPORTED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"DIFFUSE\",\"vulnerabilityResponseEffort\":\"LOW\",\"providerUrgency\":\"AMBER\"}}]},\"weaknesses\":[{\"source\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"references\":[{\"url\":\"https://www.netgear.com/support/product/dgnd3700v1\",\"source\":\"a2826606-91e7-4eb6-899e-8484bd4575d5\"}]}}"
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…