CVE-2025-9014

HIGH

TP-Link TL-WR841N v14 < 250908 - Unauthenticated Denial of Service via Referer Header Check

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0020
EPSS Percentile 42.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476 CWE-20
Status published
Products (1)
tp-link/tl-wr841n_firmware < 250908
Published Jan 15, 2026
Tracked Since Feb 18, 2026