CVE-2026-100420 (GCVE-0-2026-100420)
Vulnerability from cvelistv5 – Published: 2026-10-21 23:04 – Updated: 2026-10-21 23:04
VLAI
EPSS
VEX
Title
Information disclosure vulnerability in the cloud-client daemon of Deco BE63
Summary
A sensitive information disclosure vulnerability in the cloud-client daemon of Deco BE63 allows authenticated attackers to retrieve the plaintext TP-Link ID account password.
Successful exploitation may allow attackers to compromise the associated cloud account and perform unauthorized actions on behalf of the affected user.
Severity
CWE
- CWE-202 - Exposure of sensitive information through data queries
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/deco-… | patch |
| https://www.tp-link.com/us/support/faq/5357/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| TP-Link Systems Inc. | Deco BE63 V2.0 |
Affected:
0 , < 1.3.3 Build 26071612
(custom)
|
guessed |
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"modules": [
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],
"product": "Deco BE63 V2.0",
"vendor": "TP-Link Systems Inc.",
"versions": [
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"status": "affected",
"version": "0",
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"descriptions": [
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}
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}
],
"metrics": [
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"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:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
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],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-202",
"description": "CWE-202 Exposure of sensitive information through data queries",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-21T23:04:28.083Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5357/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Information disclosure vulnerability in the cloud-client daemon of Deco BE63",
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},
"cveMetadata": {
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"assignerShortName": "TPLink",
"cveId": "CVE-2026-100420",
"datePublished": "2026-10-21T23:04:28.083Z",
"dateReserved": "2026-09-25T20:37:34.701Z",
"dateUpdated": "2026-10-21T23:04:28.083Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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"date": "2026-10-22",
"epss": "0.00155",
"percentile": "0.04307"
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"nvd": {
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"vendor": "TP-Link Systems Inc.",
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}
],
"id": "CVE-2026-100420",
"lastModified": "2026-10-22T15:31:24.813",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"providerUrgency": "NOT_DEFINED",
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"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
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"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"type": "Secondary"
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},
"published": "2026-10-21T23:17:23.053",
"references": [
{
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"url": "https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware"
},
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"url": "https://www.tp-link.com/us/support/faq/5357/"
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"vulnStatus": "Deferred",
"weaknesses": [
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}
}
}
}
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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