CVE-2025-9014 - CVE House

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Status published Medium CVE-2025-9014

Null Pointer Dereference Vulnerability on TL-WR841N

6.3 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Justus W. Perlwitz, JWP Consulting

References

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Affected Vendor

TP-Link Systems Inc.

View all reports →

Affected Software

TL-WR841N v14

Vulnerable Versions:

0

Timeline

Official Publish: January 15th, 2026

Last Modified: January 15th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1213 Data from Information Repositories

T1565.002 Stored Data Manipulation