CVE-2026-12001

Hardcoded Credential Vulnerability in Multiple TP-Link Router Models

Published Jul 27, 2026 CVSS 4.0 · 5.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description 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. 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.
References
Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer C20 V6
Tp-link archer Mr200 V5
Tp-link tl-wr845n V4
Tp-link tl-wr850n V3
Vendors & Products Tp-link
Tp-link archer C20 V6
Tp-link archer Mr200 V5
Tp-link tl-wr845n V4
Tp-link tl-wr850n V3
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
Weaknesses CWE-798
References
Metrics cvssV4_0

{'score': 5.2, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Aug 11, 2026, 9:03 PM
Reserved
Jun 11, 2026, 4:23 PM
Status
Deferred
Published
Jul 27, 2026, 9:16 PM
Modified
Aug 11, 2026, 9:17 PM