NULL pointer dereference in TP-Link Tl-Wr841n
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.004 (35.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tp-link Tl-wr841n — versions 14
- Tp-link Tl-wr841n_firmware
- Tp-link Systems Inc. Tl-wr841n V14 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Patch, Vendor Advisory)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
Frequently asked questions
- What is CVE-2025-9014?
- CVE-2025-9014 is a high-severity vulnerability in TP-Link Tl-Wr841n, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-01-15.
- How severe is CVE-2025-9014?
- High severity. CVSS v3 base score is 7.5 out of 10.