Vulnerability-Lookup

CVE-2026-12001 (GCVE-0-2026-12001)

Vulnerability from cvelistv5 – Published: 2026-07-27 20:08 – Updated: 2026-08-11 21:03

Title

Hardcoded Credential Vulnerability in Multiple TP-Link Router Models

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.

Severity

5.2 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-28 15:09 UTC

CWE

CWE-798 - Use of Hard-coded Credentials

Assigner

TPLink mitre root

References

11 references

URL	Tags
https://www.tp-link.com/en/support/download/arche…	patch
https://www.tp-link.com/in/support/download/arche…	patch
https://www.tp-link.com/en/support/download/arche…	patch
https://www.tp-link.com/us/support/download/arche…	patch
https://www.tp-link.com/in/support/download/arche…	patch
https://www.tp-link.com/en/support/download/tl-wr…	patch
https://www.tp-link.com/in/support/download/tl-wr…	patch
https://www.tp-link.com/in/support/download/tl-wr…	patch
https://www.tp-link.com/us/support/faq/5210/	vendor-advisory
https://www.tp-link.com/us/support/download/tl-wr…	patch
https://www.tp-link.com/en/support/download/tl-wr…	patch

Impacted products

5 products

Vendor	Product	Version	CPE status
TP-Link Systems Inc.	TL-WR850N v3	Affected: 0 , < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048 (custom)	guessed
TP-Link Systems Inc.	Archer C20 v6	Affected: 0 , < Archer C20(US)_V6_250630 (custom)	guessed
TP Link Systems Inc.	TL-WR845N v4	Affected: 0 , < TL-WR845N(UN)_V4_250401 (custom)	guessed
TP-Link Systems Inc.	Archer MR200 v5	Affected: 0 , < EU_V5.20_1.3.0 Build 260319 (custom)	guessed
TP Link Systems Inc.	TL-WR902AC v4	Affected: 0 , < US_V4_0.9.1 Build 260810 (custom) Affected: 0 , < EU_V4_0.9.3 Build 260728 (custom)	guessed

Credits

Carlos Trujillo Swaroop Dora, Akash Singh, Parth Chaurasia, Devel Lunkad, Ashutosh Kumar and S.Venkatesan , IoT Security Lab, Indian Institute of Information Technology, Allahabad

Show details on NVD website

JSON

To clipboard

{
  "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": {
    "epss": {
      "cve": "CVE-2026-12001",
      "date": "2026-09-17",
      "epss": "0.00251",
      "percentile": "0.16758"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-12001\",\"sourceIdentifier\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"published\":\"2026-07-27T21:16:47.457\",\"lastModified\":\"2026-08-11T21:17:25.127\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"affectedData\":[{\"vendor\":\"TP-Link Systems Inc.\",\"product\":\"TL-WR850N v3\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"TP-Link Systems Inc.\",\"product\":\"Archer C20 v6\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"Archer C20(US)_V6_250630\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"TP Link Systems Inc.\",\"product\":\"TL-WR845N v4\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"TL-WR845N(UN)_V4_250401\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"TP-Link Systems Inc.\",\"product\":\"Archer MR200 v5\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"EU_V5.20_1.3.0 Build 260319\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"TP Link Systems Inc.\",\"product\":\"TL-WR902AC v4\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"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\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.2,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-28T15:09:04.473247Z\",\"id\":\"CVE-2026-12001\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-798\"}]}],\"references\":[{\"url\":\"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/us/support/faq/5210/\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"}]}}",
    "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"
    }
  }
}

FKIE_CVE-2026-12001

Vulnerability from fkie_nvd - Published: 2026-07-27 21:16 - Updated: 2026-08-11 21:17

Severity

5.2 (Medium) - 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

Summary

References

	URL	Tags
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/faq/5210/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-12001",
  "lastModified": "2026-08-11T21:17:25.127",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "PHYSICAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.2,
          "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",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-12001",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-28T15:09:04.473247Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-27T21:16:47.457",
  "references": [
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/us/support/faq/5210/"
    }
  ],
  "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "type": "Secondary"
    }
  ]
}

GHSA-884R-QM45-3J9G

Vulnerability from github – Published: 2026-07-27 21:31 – Updated: 2026-08-11 21:32

Details

A hardcoded credential vulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, 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.

Severity

5.2 (Medium)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-12001"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-27T21:16:47Z",
    "severity": "MODERATE"
  },
  "details": "A hardcoded credential\nvulnerability exists in the firmware of multiple TP-Link routers (TL-WR845N v4, TL-WR850N v3, 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.",
  "id": "GHSA-884r-qm45-3j9g",
  "modified": "2026-08-11T21:32:26Z",
  "published": "2026-07-27T21:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12001"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5210"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-12001 (GCVE-0-2026-12001)

FKIE_CVE-2026-12001

GHSA-884R-QM45-3J9G

Tags

Sightings

Nomenclature

Related by attack behaviour