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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-1871",
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"state": "PUBLISHED",
"assignerShortName": "TPLink",
"dateReserved": "2026-02-04T00:03:47.430Z",
"datePublished": "2026-06-02T16:13:36.640Z",
"dateUpdated": "2026-06-02T18:24:54.391Z"
},
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"shortName": "TPLink",
"dateUpdated": "2026-06-02T16:13:36.640Z"
},
"title": "Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-121",
"description": "CWE-121 Stack-based buffer overflow",
"type": "CWE"
}
]
}
],
"impacts": [
{
"capecId": "CAPEC-100",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-100 Overflow Buffers"
}
]
}
],
"affected": [
{
"vendor": "TP-Link Systems Inc.",
"product": "Tapo C200 v5",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.4.4 Build 260527 Rel.28339n",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request.\n\nSuccessful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This prevents legitimate users from accessing the camera’s live video stream or management interface until the service restarts.",
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"value": "TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request.\n<br>Successful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This prevents legitimate users from accessing the camera’s live video stream or management interface until the service restarts.&nbsp;<br>"
}
]
}
],
"references": [
{
"url": "https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes",
"tags": [
"patch"
]
},
{
"url": "https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes",
"tags": [
"patch"
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},
{
"url": "https://www.tp-link.com/kr/support/download/tapo-c200/#Firmware-Release-Notes",
"tags": [
"patch"
]
},
{
"url": "https://www.tp-link.com/us/support/faq/5113/",
"tags": [
"vendor-advisory"
]
}
],
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"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
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"cvssV4_0": {
"attackVector": "ADJACENT",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 7.1,
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
}
}
],
"credits": [
{
"lang": "en",
"value": "Sumin Kim (@Shine)",
"type": "finder"
}
],
"source": {
"discovery": "UNKNOWN"
},
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{
"metrics": [
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"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-02T18:21:22.840412Z",
"id": "CVE-2026-1871",
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"Exploitation": "none"
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"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
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}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-06-02T18:24:54.391Z"
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}