CVE-2026-12001 (GCVE-0-2026-12001)
Vulnerability from cvelistv5
Published
2026-07-27 20:08
Modified
2026-08-11 21:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-798 - Use of Hard-coded Credentials
Summary
A hardcoded credential
vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 & Archer MR200 v5). Authentication-related credential material is
embedded within a password file in the firmware image and may be recovered
through firmware analysis.
Successful
exploitation could result in unauthorized access to privileged functions on
affected devices.
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TP-Link Systems Inc. | TL-WR850N v3 |
Version: 0 < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048 |
||||||||||||||||||||||
|
||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-12001",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-28T15:09:04.473247Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-28T15:20:07.339Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "TL-WR850N v3",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer C20 v6",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "Archer C20(US)_V6_250630",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "TL-WR845N v4",
"vendor": "TP Link Systems Inc.",
"versions": [
{
"lessThan": "TL-WR845N(UN)_V4_250401",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Archer MR200 v5",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "EU_V5.20_1.3.0 Build 260319",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "TL-WR902AC v4",
"vendor": "TP Link Systems Inc.",
"versions": [
{
"lessThan": "US_V4_0.9.1 Build 260810",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "EU_V4_0.9.3 Build 260728",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Carlos Trujillo"
},
{
"lang": "en",
"type": "finder",
"value": "Swaroop Dora, Akash Singh, Parth Chaurasia, Devel Lunkad, Ashutosh Kumar and S.Venkatesan , IoT Security Lab, Indian Institute of Information Technology, Allahabad"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA hardcoded credential\nvulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 \u0026amp; Archer MR200 v5). \u0026nbsp;Authentication-related credential material is\nembedded within a password file in the firmware image and may be recovered\nthrough firmware analysis.\u003c/p\u003e\n\n\u003cp\u003eSuccessful\nexploitation could result in unauthorized access to privileged functions on\naffected devices.\u003c/p\u003e"
}
],
"value": "A hardcoded credential\nvulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 \u0026 Archer MR200 v5). \u00a0Authentication-related credential material is\nembedded within a password file in the firmware image and may be recovered\nthrough firmware analysis.\n\n\n\n\n\nSuccessful\nexploitation could result in unauthorized access to privileged functions on\naffected devices."
}
],
"impacts": [
{
"capecId": "CAPEC-70",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-70 Try Common or Default Usernames and Passwords"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "PHYSICAL",
"baseScore": 5.2,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-798",
"description": "CWE-798 Use of Hard-coded Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T21:03:54.866Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5210/"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Hardcoded Credential Vulnerability in Multiple TP-Link Router Models",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"assignerShortName": "TPLink",
"cveId": "CVE-2026-12001",
"datePublished": "2026-07-27T20:08:50.230Z",
"dateReserved": "2026-06-11T16:23:35.413Z",
"dateUpdated": "2026-08-11T21:03:54.866Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-12001\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-28T15:09:04.473247Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-28T15:09:08.419Z\"}}], \"cna\": {\"title\": \"Hardcoded Credential Vulnerability in Multiple TP-Link Router Models\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Carlos Trujillo\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Swaroop Dora, Akash Singh, Parth Chaurasia, Devel Lunkad, Ashutosh Kumar and S.Venkatesan , IoT Security Lab, Indian Institute of Information Technology, Allahabad\"}], \"impacts\": [{\"capecId\": \"CAPEC-70\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-70 Try Common or Default Usernames and Passwords\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.2, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"PHYSICAL\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"TP-Link Systems Inc.\", \"product\": \"TL-WR850N v3\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"TP-Link Systems Inc.\", \"product\": \"Archer C20 v6\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"Archer C20(US)_V6_250630\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"TP Link Systems Inc.\", \"product\": \"TL-WR845N v4\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"TL-WR845N(UN)_V4_250401\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"TP-Link Systems Inc.\", \"product\": \"Archer MR200 v5\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"EU_V5.20_1.3.0 Build 260319\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"TP Link Systems Inc.\", \"product\": \"TL-WR902AC v4\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"US_V4_0.9.1 Build 260810\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"EU_V4_0.9.3 Build 260728\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/us/support/faq/5210/\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A hardcoded credential\\nvulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 \u0026 Archer MR200 v5). \\u00a0Authentication-related credential material is\\nembedded within a password file in the firmware image and may be recovered\\nthrough firmware analysis.\\n\\n\\n\\n\\n\\nSuccessful\\nexploitation could result in unauthorized access to privileged functions on\\naffected devices.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eA hardcoded credential\\nvulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, TL-WR902AC v4, Archer C20 v6 \u0026amp; Archer MR200 v5). \u0026nbsp;Authentication-related credential material is\\nembedded within a password file in the firmware image and may be recovered\\nthrough firmware analysis.\u003c/p\u003e\\n\\n\u003cp\u003eSuccessful\\nexploitation could result in unauthorized access to privileged functions on\\naffected devices.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-798\", \"description\": \"CWE-798 Use of Hard-coded Credentials\"}]}], \"providerMetadata\": {\"orgId\": \"f23511db-6c3e-4e32-a477-6aa17d310630\", \"shortName\": \"TPLink\", \"dateUpdated\": \"2026-08-11T21:03:54.866Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-12001\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-11T21:03:54.866Z\", \"dateReserved\": \"2026-06-11T16:23:35.413Z\", \"assignerOrgId\": \"f23511db-6c3e-4e32-a477-6aa17d310630\", \"datePublished\": \"2026-07-27T20:08:50.230Z\", \"assignerShortName\": \"TPLink\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…