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CVE-2026-12339

Authenticated Arbitrary File Write Vulnerability in multiple devices

A Zip Slip vulnerability in the WebUI ISP Upgrade functionality allows arbitrary file write via a crafted archive containing directory traversal sequences. An authenticated administrator may overwrite arbitrary files on the system.Successful exploitation may allow arbitrary file to be overwritten on the underlying system, affecting system integrity and availability.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Archer Mr200 V07 Archer Mr600 V2 Tl-mr6400 V5.3
CVE-2026-12001

Hardcoded Credential Vulnerability in Multiple TP-Link Router Models

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.

CVSS 4.0 · 5.2 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Archer C20 V6 Archer Mr200 V5 Tl-wr845n V4 and 1 more
CVE-2026-11834

Unauthenticated Command Injection via DHCP Option Handling in Multiple TP-Link Routers

A command injection vulnerability has been identified in the DHCP option processing logic in multiple TP-Link router models, due to insufficient validation of externally supplied DHCP option data. An adjacent attacker may exploit this vulnerability by supplying crafted DHCP responses, potentially resulting in unauthorized command execution during device initialization or provisioning workflows. This typically occurs when the device is in a factory-default or unconfigured state. Successful exploitation may allow an adjacent, unauthenticated attacker to execute arbitrary commands with elevated privileges, potentially leading to full compromise of the affected device and unauthorized administrative control.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Tp-link Tp Link
Products
Archer C20 V5 Archer C20 V6 Archer Mr200 V07 and 4 more
CVE-2025-15551

LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N

The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.

CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Archer C20 Archer C20 Firmware Archer Mr200 and 5 more