Vulnerability Intelligence Report
Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
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). 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.
No Active Exploit Signals
CVSS Base Score
5.2
MEDIUM
EPSS Probability:0.24%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-798 ↗CWE-798 Use of Hard-coded Credentials
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| TP-Link Systems Inc. | TL-WR850N v3 | 0 < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048 (affected) |
| TP-Link Systems Inc. | Archer C20 v6 | 0 < Archer C20(US)_V6_250630 (affected) |
| TP Link Systems Inc. | TL-WR845N v4 | 0 < TL-WR845N(UN)_V4_250401 (affected) |
| TP-Link Systems Inc. | Archer MR200 v5 | 0 < EU_V5.20_1.3.0 Build 260319 (affected) |
| TP Link Systems Inc. | TL-WR902AC v4 | 0 < US_V4_0.9.1 Build 260810 (affected), 0 < EU_V4_0.9.3 Build 260728 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.245%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | TP-Link Systems Inc. · Vendor · USA |
| Reserved | 2026-06-11T16:23:35 |
| Published | 2026-07-27T20:08:50 |
| Last Updated | 2026-08-11T21:03:54 |
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