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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (40.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
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.