CVE-2026-12001
Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-798 |
| Vendor | tp-link systems inc. |
| Product | tl-wr850n v3 |
| Published | Jul 27, 2026 |
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Affected Versions
TP-Link Systems Inc. / TL-WR850N v3
0 < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048
TP-Link Systems Inc. / Archer C20 v6
0 < Archer C20(US)_V6_250630
TP Link Systems Inc. / TL-WR845N v4
0 < TL-WR845N(UN)_V4_250401
TP-Link Systems Inc. / Archer MR200 v5
0 < Archer MR200(EU)_V5.20_1.3.0 Build 260319
References
tp-link.com: https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware tp-link.com: https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware tp-link.com: https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware tp-link.com: https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware tp-link.com: https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware tp-link.com: https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware tp-link.com: https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware tp-link.com: https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware tp-link.com: https://www.tp-link.com/us/support/faq/5210/
Credits
Carlos Trujillo