CVE-2025-9014

medium

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

https://www.tp-link.com/us/support/faq/4894/

https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware

https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware

https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware

Details

Source: Mitre, NVD

Published: 2026-01-15

Updated: 2026-01-30

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 6.3

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.0009