CVE-2026-3841 is a high-severity OS command injection vulnerability in the Telnet CLI of TP-Link TL-MR6400 v5.3 routers. It arises from improper sanitization of input data during certain CLI operations, allowing an authenticated attacker with elevated privileges to execute arbitrary system commands. Exploitation can lead to full device compromise, affecting confidentiality, integrity, and availability. No user interaction is required, but elevated privileges and network access via Telnet are necessary. Although no known exploits are currently in the wild, the vulnerability poses a significant risk due to the critical nature of the device and its role in network infrastructure. Organizations using this router model should prioritize patching or mitigating this issue. Countries with widespread use of TP-Link networking equipment and strategic reliance on such devices are at higher risk.
A command injection vulnerability was identified in the web module of Archer AXE75 v1.6/v1.0 router. An authenticated attacker with adjacent-network access may be able to perform remote code execution (RCE) when the router is configured with sysmode=ap. Successful exploitation results in root-level privileges and impacts confidentiality, integrity and availability of the device.
This issue affects Archer AXE75 v1.6/v1.0: through 1.3.2 Build 20250107.
A denial-of-service (DoS) vulnerability was identified in Omada EAP610 v3. An attacker with adjacent network access can send crafted requests to cause the device’s HTTP service to crash. This results in temporary service unavailability until the device is rebooted.
This issue affects Omada EAP610 firmware versions prior to 1.6.0.
Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to be executed as part of an OS command. An authenticated adjacent attacker may execute arbitrary commands via crafted configuration file, impacting confidentiality, integrity and availability of the device.
This issue affects Deco BE25 v1.0: through 1.1.1 Build 20250822.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in TP-Link Deco BE25 v1.0 (web modules) allows authenticated adjacent attacker to read arbitrary files or cause denial of service. This issue affects Deco BE25 v1.0: through 1.1.1 Build 20250822.
A vulnerability in the certificate validation logic may allow applications to accept untrusted or improperly validated server identities during TLS communication. An attacker in a privileged network position may be able to intercept or modify traffic if they can position themselves within the communication channel. Successful exploitation may compromise confidentiality, integrity, and availability of application data.
A permissive web security configuration may allow cross-origin restrictions enforced by modern browsers to be bypassed under specific circumstances. Exploitation requires the presence of an existing client-side injection vulnerability and user access to the affected web interface. Successful exploitation could allow unauthorized disclosure of sensitive information. Fixed in updated Omada Cloud Controller service versions deployed automatically by TP‑Link. No user action is required.
User-controlled input is reflected into the HTML output without proper encoding on TP-Link Archer C60 v3, allowing arbitrary JavaScript execution via a crafted URL. An attacker could run script in the device web UI context, potentially enabling credential theft, session hijacking, or unintended actions if a privileged user is targeted.
A path traversal vulnerability was identified TP-Link Tapo C260 v1, D235 v1, C211 v2 and C520WS v2.6 within the HTTP server’s handling of GET requests. The server performs path normalization before fully decoding URL encoded input and falls back to using the raw path when normalization fails. An attacker can exploit this logic flaw by supplying crafted, URL encoded traversal sequences that bypass directory restrictions and allow access to files outside the intended web root.
Successful exploitation may allow authenticated attackers to get disclosure of sensitive system files and credentials, while unauthenticated attackers may gain access to non-sensitive static assets.
On TP-Link Tapo C260 v1, command injection vulnerability exists due to improper sanitization in certain POST parameters during configuration synchronization. An authenticated attacker can execute arbitrary system commands with high impact on confidentiality, integrity and availability. It may cause full device compromise.
On TP-Link Tapo C260 v1 and D235 v1, a guest‑level authenticated user can bypass intended access restrictions by sending crafted requests to a synchronization endpoint. This allows modification of protected device settings despite limited privileges. An attacker may change sensitive configuration parameters without authorization, resulting in unauthorized device state manipulation but not full code execution.
An Improper Certificate Validation vulnerability in TP-Link Tapo H100 v1 and Tapo P100 v1 allows an on-path attacker on the same network segment to intercept and modify encrypted device-cloud communications. This may compromise the confidentiality and integrity of device-to-cloud communication, enabling manipulation of device data or operations.
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.
Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a maliciously formed field.
This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120 and Archer AX12 v1.0: up to 1.5.1 Build 20260721.
SSH Hostkey misconfiguration vulnerability in Archer AX53 and Archer BE3600 (tmpserver modules) allows attackers to obtain device credentials through a specially crafted man‑in‑the‑middle (MITM) attack. This could enable unauthorized access if captured credentials are reused.
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a field whose length exceeds the maximum expected value.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet whose length exceeds the maximum expected value.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing an excessive number of fields with zero‑length values.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing an excessive number of fields with zero‑length values.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code. The vulnerability arises from improper validation of a packet field whose offset is used to determine the write location in memory. By crafting a packet with a manipulated field offset, an attacker can redirect writes to arbitrary memory locations.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
