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CVE-2026-12001

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dcde7cd370cf601f1e82ae97e11788662965e44a9ece9b3b9c40cc777f43aee6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"defaultStatus":"unaffected","product":"Archer MR200 v5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"Archer MR200(EU)_V5.20_1.3.0 Build 260319","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/3

{"defaultStatus":"unaffected","product":"TL-WR845N v4","vendor":"TP Link Systems Inc.","versions":[{"lessThan":"TL-WR845N(UN)_V4_250401","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/2

{"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"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Archer C20 v6","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"Archer C20(US)_V6_250630","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/1

Affected products and versions

4 source assertions
{"defaultStatus":"unaffected","product":"Archer MR200 v5","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"Archer MR200(EU)_V5.20_1.3.0 Build 260319","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/3
{"defaultStatus":"unaffected","product":"TL-WR845N v4","vendor":"TP Link Systems Inc.","versions":[{"lessThan":"TL-WR845N(UN)_V4_250401","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/2
{"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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Archer C20 v6","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"Archer C20(US)_V6_250630","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"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…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-798","description":"CWE-798 Use of Hard-coded Credentials","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/problemTypes/0/descriptions/0

Source references

9 source assertions
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/2
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/0
{"tags":["patch"],"url":"https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/5
{"tags":["patch"],"url":"https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/4
{"tags":["patch"],"url":"https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/1
{"tags":["patch"],"url":"https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/6
{"tags":["patch"],"url":"https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/7
{"tags":["patch"],"url":"https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/3
{"tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/5210/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f2f17491638b0c070be019f508aa4fafea9b0ea8afa3f2bef9b93f5f46adc35e · sha256:ed022ad5249d40c8… · /containers/cna/references/8

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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