Security Advisory on Null pointer Dereference Vulnerability on TP-Link TL-WR841N (CVE-2025-9014)
Vulnerability Description:
A Null Pointer Dereference vulnerability exists in the referrer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.
Impact:
A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.
CVSS v4.0 Score: 6.3 / Medium
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
Affected Products/Versions and Fixes:
|
Affected Product Model |
Related Vulnerabilities |
Affected Version |
Fixed Version |
|
TL-WR841N v14 |
CVE-2025-9014 |
< 250908 |
>= 250908 |
Recommendation(s):
We strongly recommend that users with the affected device(s) take the following action(s):
- Download and update to the latest firmware to fix the vulnerabilities.
US: https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
EN: https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware
JP: https://www.tp-link.com/jp/support/download/tl-wr841n/v14/#Firmware
Disclaimer:
If you do not take the recommended action(s) stated above, this vulnerability concern will remain. TP-Link cannot bear any responsibility for the consequences that could have been avoided by following the recommended action(s) in this statement.
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