CVE-2026-12001
Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
- State
- Published
- Severity
- 5.2 Medium
- Published
- Jul 27, 2026
- Updated
- Aug 11, 2026
- Reserved
- Jun 11, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.2 Medium | 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 | TPLink |
Weaknesses
- CWE-798 Use of Hard-coded Credentials
Affected Products
| Product | Versions |
|---|---|
TL-WR850N v3TP-Link Systems Inc. |
|
Archer C20 v6TP-Link Systems Inc. |
|
TL-WR845N v4TP Link Systems Inc. |
|
Archer MR200 v5TP-Link Systems Inc. |
|
TL-WR902AC v4TP Link Systems Inc. |
|
References
- https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmwarepatch
- https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmwarepatch
- https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmwarepatch
- https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmwarepatch
- https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmwarepatch
- https://www.tp-link.com/en/support/download/tl-wr845n/#Firmwarepatch
- https://www.tp-link.com/in/support/download/tl-wr845n/#Firmwarepatch
- https://www.tp-link.com/in/support/download/tl-wr850n/#Firmwarepatch
- https://www.tp-link.com/us/support/faq/5210/vendor-advisory
- https://www.tp-link.com/us/support/download/tl-wr902ac/v4/#Firmwarepatch
- https://www.tp-link.com/en/support/download/tl-wr902ac/v4/#Firmwarepatch
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