CVE-2026-12001
Hardcoded Credential Vulnerability in Multiple TP-Link Router Models
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.
INFO
Published Date :
July 27, 2026, 9:16 p.m.
Last Modified :
July 28, 2026, 4:20 p.m.
Remotely Exploit :
No
Source :
f23511db-6c3e-4e32-a477-6aa17d310630
Affected Products
The following products are affected by CVE-2026-12001
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 | ||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Update firmware to the latest version.
- Replace affected devices if no update is available.
- Implement secure credential management practices.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12001.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12001 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12001
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12001 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12001 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 28, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12001', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-28T15:09:04.473247Z'} -
New CVE Received by f23511db-6c3e-4e32-a477-6aa17d310630
Jul. 27, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'TP-Link Systems Inc.', 'product': 'TL-WR850N v3', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'TL-WR850N(IN)_V3.48_3.16.0 Build 260422_2048', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'Archer C20 v6', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'Archer C20(US)_V6_250630', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP Link Systems Inc.', 'product': 'TL-WR845N v4', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'TL-WR845N(UN)_V4_250401', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'Archer MR200 v5', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'Archer MR200(EU)_V5.20_1.3.0 Build 260319', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] 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. Added CVSS V4.0 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 Added CWE CWE-798 Added Reference https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware Added Reference https://www.tp-link.com/en/support/download/archer-mr200/v5/#Firmware Added Reference https://www.tp-link.com/en/support/download/tl-wr845n/#Firmware Added Reference https://www.tp-link.com/in/support/download/archer-c20/v6/#Firmware Added Reference https://www.tp-link.com/in/support/download/archer-mr200/v5/#Firmware Added Reference https://www.tp-link.com/in/support/download/tl-wr845n/#Firmware Added Reference https://www.tp-link.com/in/support/download/tl-wr850n/#Firmware Added Reference https://www.tp-link.com/us/support/download/archer-c20/v6/#Firmware Added Reference https://www.tp-link.com/us/support/faq/5210/