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1 vulnerability found for Archer C6 V2 by TP-Link Systems Inc.
CVE-2026-89052 (GCVE-0-2026-89052)
Vulnerability from cvelistv5
Published
2026-10-21 22:40
Modified
2026-10-21 22:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-321 - Use of hard-coded cryptographic key
Summary
A hardcoded cryptographic key management vulnerability exists in Archer C6 due to the use of a universal cryptographic key shared across devices. An attacker who obtains an encrypted configuration file or other protected credential data can recover plaintext credentials.
Successful exploitation may allow unauthorized disclosure of sensitive information, including administrative credentials.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| TP-Link Systems Inc. | Archer C6 V2 |
Version: 0 < 1.2.1 Build 260902 |
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"product": "Archer C6 V2",
"vendor": "TP-Link Systems Inc.",
"versions": [
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"lessThan": "1.2.1 Build 260902",
"status": "affected",
"version": "0",
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}
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"credits": [
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"type": "finder",
"value": "S\u00e9rgio Silva CYBERS3C"
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}
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}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 5.9,
"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:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
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"problemTypes": [
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"descriptions": [
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"cweId": "CWE-321",
"description": "CWE-321 Use of hard-coded cryptographic key",
"lang": "en",
"type": "CWE"
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}
],
"providerMetadata": {
"dateUpdated": "2026-10-21T22:40:16.165Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/archer-c6/v2/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5356/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Hardcoded AES encryption key in Archer C6",
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"cveId": "CVE-2026-89052",
"datePublished": "2026-10-21T22:40:16.165Z",
"dateReserved": "2026-09-10T17:16:02.019Z",
"dateUpdated": "2026-10-21T22:40:16.165Z",
"state": "PUBLISHED"
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