A hardcoded credential\nvulnerability 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\nembedded within a password file in the firmware image and may be recovered\nthrough firmware analysis.
\n\nSuccessful\nexploitation could result in unauthorized access to privileged functions on\naffected devices.
"}],"value":"A hardcoded credential\nvulnerability 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\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":"2026-07-27T20:08:50.230Z","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/"}],"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":"2026-07-27T20:08:50.230Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-27 21:16:47","lastModifiedDate":"2026-07-27 21:16:47","problem_types":["CWE-798","CWE-798 CWE-798 Use of Hard-coded Credentials"],"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"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"12001","Ordinal":"1","Title":"Hardcoded Credential Vulnerability in Multiple TP-Link Router Mo","CVE":"CVE-2026-12001","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"12001","Ordinal":"1","NoteData":"A hardcoded credential\nvulnerability 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\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.","Type":"Description","Title":"Hardcoded Credential Vulnerability in Multiple TP-Link Router Mo"}]}}}