Refine your search
1 vulnerability found for Archer VR2100 v1 by TP-Link Systems Inc.
CVE-2026-11834 (GCVE-0-2026-11834)
Vulnerability from cvelistv5
Published
2026-06-22 17:53
Modified
2026-06-26 21:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Summary
A command
injection vulnerability has been identified in the DHCP option processing logic
in multiple TP-Link router models, due to insufficient validation of externally
supplied DHCP option data. An adjacent attacker may exploit this
vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized
command execution during device initialization or provisioning workflows. This
typically occurs when the device is in a factory-default or unconfigured state.
Successful
exploitation may allow an adjacent, unauthenticated attacker to execute
arbitrary commands with elevated privileges, potentially leading to full
compromise of the affected device and unauthorized administrative control.
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TP-Link Systems Inc. | Archer MR200 v07 |
Version: 0 < 1.3.0 Build 250605 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-11834",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-23T03:56:03.662Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Archer MR200 v07",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.3.0 Build 250605",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer MR200 v8",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.5.0 Build 260605",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer MR402 v1",
"vendor": "TP Link Systems Inc.",
"versions": [
{
"lessThan": "1.5.0 Build 260605",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer VR2100 v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "EU_V1_260330",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer C20 v5",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "EU_V5_260317",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "US_V5_260419",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer C20 v6",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "V6_260608",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "TL-MR6400 v7",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.7.0 Build 260413",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Matt Graham (mattg.systems)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA command\ninjection vulnerability has been identified in the DHCP option processing logic\nin multiple TP-Link router models, due to insufficient validation of externally\nsupplied DHCP option data.\u0026nbsp;An adjacent attacker may exploit this\nvulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized\ncommand execution during device initialization or provisioning workflows. This\ntypically occurs when the device is in a factory-default or unconfigured state.\u003c/p\u003e\n\n\u003cp\u003eSuccessful\nexploitation may allow an adjacent, unauthenticated attacker to execute\narbitrary commands with elevated privileges, potentially leading to full\ncompromise of the affected device and unauthorized administrative control.\u003c/p\u003e"
}
],
"value": "A command\ninjection vulnerability has been identified in the DHCP option processing logic\nin multiple TP-Link router models, due to insufficient validation of externally\nsupplied DHCP option data.\u00a0An adjacent attacker may exploit this\nvulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized\ncommand execution during device initialization or provisioning workflows. This\ntypically occurs when the device is in a factory-default or unconfigured state.\n\n\n\n\n\nSuccessful\nexploitation may allow an adjacent, unauthenticated attacker to execute\narbitrary commands with elevated privileges, potentially leading to full\ncompromise of the affected device and unauthorized administrative control."
}
],
"impacts": [
{
"capecId": "CAPEC-88",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-88 OS Command Injection"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78 Improper neutralization of special elements used in an OS command (\u0027OS command injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-26T21:14:49.752Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-c20/"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-mr402/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-mr200/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-vr2100/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/archer-c20/"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5141/"
},
{
"url": "https://mattg.systems/posts/cve-2026-11834/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"assignerShortName": "TPLink",
"cveId": "CVE-2026-11834",
"datePublished": "2026-06-22T17:53:48.436Z",
"dateReserved": "2026-06-09T22:14:54.973Z",
"dateUpdated": "2026-06-26T21:14:49.752Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}