CVE-2026-12001

MEDIUM

TP-Link TL-WR845N/TL-WR850N/Archer C20/Archer MR200 - Hardcoded Credentials

Title source: manual
STIX 2.1

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.

References (9)

Core 9

Scores

CVSS v4 5.2
EPSS 0.0024
EPSS Percentile 15.8%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-798
Status published
Products (4)
TP Link Systems Inc./TL-WR845N v4 < TL-WR845N(UN)_V4_250401
TP-Link Systems Inc./Archer C20 v6 < Archer C20(US)_V6_250630
TP-Link Systems Inc./Archer MR200 v5 < Archer MR200(EU)_V5.20_1.3.0 Build 260319
TP-Link Systems Inc./TL-WR850N v3 < TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048
Published Jul 27, 2026
Tracked Since Jul 28, 2026