CVE-2026-12001
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).
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 5.2 MEDIUMCVSS: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/M
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-798
- Source
- f23511db-6c3e-4e32-a477-6aa17d310630
References
- https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
- https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware
- https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware
- https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmware
- https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware
- https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware
- https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware
- https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware
- https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware
- https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmware
- https://www.tp-link.com/us/support/faq/5210/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.