{"schemaVersion":3,"id":"CVE-2026-12001","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"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 & 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.","dates":{"published":"2026-07-27T20:08:50.230Z","modified":"2026-08-11T21:03:54.866Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.2,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"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","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":5.2,"severity":"medium","vector":"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","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":5.2,"severity":"medium","vector":"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","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00343,"percentile":0.26518,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.09199999999999998,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00251},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00343,"percentile":0.26518}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00251,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00343,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00343,"percentile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of Hard-coded Credentials","description":"The product contains hard-coded credentials, such as a password or cryptographic key.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/798.html"}],"affected":[{"vendor":"tp link systems inc.","product":"tl-wr845n v4","name":"TL-WR845N v4","label":"tl-wr845n v4","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< TL-WR845N(UN)_V4_250401","noFixRecorded":false,"fixedIn":null}],"versionsText":"< TL-WR845N(UN)_V4_250401","eol":null,"hubHref":"/vendor/tp_link_systems_inc/tl-wr845n_v4"},{"vendor":"tp link systems inc.","product":"tl-wr902ac v4","name":"TL-WR902AC v4","label":"tl-wr902ac v4","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< US_V4_0.9.1 Build 260810","noFixRecorded":false,"fixedIn":null},{"text":"< EU_V4_0.9.3 Build 260728","noFixRecorded":false,"fixedIn":null}],"versionsText":"< US_V4_0.9.1 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