CVE-2025-9014

7.5 HIGH
Published: January 15, 2026 Modified: January 30, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/faq/4894/
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Patch Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
33th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tp-link