Actively exploited in the wild
TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability
TP-Link - TL-WR841N · Listed in the CISA KEV since 2025-09-03. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2023-50224
MediumCVSS 6.5KEVExploitation Probability (EPSS)
Very high risk97th percentile - higher than 97% of all known CVEs
Summary
TP-Link TL-WR841N routers have an improper authentication vulnerability in the httpd service, which listens on TCP port 80 by default. This allows network-adjacent attackers to disclose sensitive information, including stored credentials, without authentication.
Risk Assessment
An attacker can steal credentials and gain further access to the router or network, potentially leading to full device compromise.
Recommendation
Apply available firmware updates from the vendor and restrict access to port 80 to trusted devices only.
Other vulnerabilities in TP-Link TL-WR841N
See all- CVE-2026-5039High
TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from default web management credentials, making the key predictable if the device is left in default configuration.
- CVE-2025-9014High
A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation. A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service. This issue affects TL-WR841N v14 before version 250908.
- CVE-2026-76651Medium
A buffer overflow vulnerability exists in the embedded HTTP service in TL-WR841N v14 when processing multipart/form-data requests. Insufficient validation of an attacker-controlled boundary parameter may allow a remote unauthenticated attacker to submit a crafted request that corrupts memory by overwriting data beyond the bounds of an internal buffer.
- CVE-2026-76650Medium
A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP state variable query requests. A specially crafted SOAP query may trigger unexpected termination or instability of the process hosting the UPnP service.
- CVE-2026-76649Medium
A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.
- CVE-2026-9105Medium
A stack-based buffer overflow vulnerability in the web management interface of TP-Link TL-WR841N v14 allows an authenticated remote attacker to crash the device by sending a crafted HTTP request. Successful exploitation leads to a denial-of-service condition, causing the device to crash and automatically reboot.
- CVE-2022-30024High
A buffer overflow in the httpd daemon on TP-Link TL-WR841N V12 (firmware 3.16.9) allows an authenticated remote attacker to execute arbitrary code via a GET request to the System Tools page of the Wi-Fi network. This also affects versions V11 and V10.
Original NVD description (English source)
TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from improper authentication. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-19899.