CVE-2025-9014

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 250908.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware	Product
https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware	Product
https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware	Product
https://www.tp-link.com/us/support/faq/4894/	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:*

History

30 Jan 2026, 19:48

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CWE		CWE-476
References	~~() https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware -~~	() https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware - Product
References	~~() https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware -~~	() https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware - Product
References	~~() https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware -~~	() https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware - Product
References	~~() https://www.tp-link.com/us/support/faq/4894/ -~~	() https://www.tp-link.com/us/support/faq/4894/ - Patch, Vendor Advisory
CPE		cpe:2.3:h:tp-link:tl-wr841n:14:::::::* cpe:2.3:o:tp-link:tl-wr841n_firmware::::::::
First Time		Tp-link Tp-link tl-wr841n Tp-link tl-wr841n Firmware

15 Jan 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-15 18:16

Updated : 2026-01-30 20:42

NVD link : CVE-2025-9014

Mitre link : CVE-2025-9014

CVE.ORG link : CVE-2025-9014

JSON object : View

Products Affected

tp-link

tl-wr841n
tl-wr841n_firmware

CWE

CWE-20

Improper Input Validation

CWE-476

NULL Pointer Dereference

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