Vulnerability · Published Jul 27, 2026 · Assigned by TPLink

CVE-2026-12001Hardcoded Credential Vulnerability in Multiple TP-Link Router Models

Medium 5.2

In plain English

A medium-severity hard-coded credentials in Archer C20 v6 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 4.0)5.2Medium

Exploit odds (30 days)0.3%top 72.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
TP-Link Systems Inc.	TL-WR850N v3	0 – before TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048
TP-Link Systems Inc.	Archer C20 v6	0 – before Archer C20(US)_V6_250630
TP Link Systems Inc.	TL-WR845N v4	0 – before TL-WR845N(UN)_V4_250401
TP-Link Systems Inc.	Archer MR200 v5	0 – before EU_V5.20_1.3.0 Build 260319
TP Link Systems Inc.	TL-WR902AC v4	0 – before US_V4_0.9.1 Build 2608100 – before EU_V4_0.9.3 Build 260728

Weakness: CWE-798 · 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

In plain English

Official description

Affected products (as reported)

References