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CVE-2026-12001

Hardcoded Credential Vulnerability in Multiple TP-Link Router Models

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048, Archer C20(US)_V6_250630, TL-WR845N(UN)_V4_250401, EU_V5.20_1.3.0 Build 260319, US_V4_0.9.1 Build 260810, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • TP-Link Systems Inc. TL-WR850N v3

    fixed in TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048

  • TP-Link Systems Inc. Archer C20 v6

    fixed in Archer C20(US)_V6_250630

  • TP Link Systems Inc. TL-WR845N v4

    fixed in TL-WR845N(UN)_V4_250401

  • TP-Link Systems Inc. Archer MR200 v5

    fixed in EU_V5.20_1.3.0 Build 260319

  • TP Link Systems Inc. TL-WR902AC v4

    fixed in US_V4_0.9.1 Build 260810; fixed in EU_V4_0.9.3 Build 260728

References 11

tp-link.com