CVE-2026-9105

What it is

An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.

At a glance

Exploitability

Can be exploited from the same network segment with an admin-level account. High risk of service disruption.

Exploit odds

1.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-06-29 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-25 21:10 UTC Last updatedMost recent change to the record

Details

Published

2026-06-29 16:16 UTC

Last modified

2026-10-25 21:10 UTC

Exploit probability

1.1% · EPSS, next 30 days

Weakness

CWE-121

Record status

Analyzed

Affected

• TP-Link tl-wr841n Firmware < 14_260518

Attack profile CVSS 4.0 · 6.8

Attack vector

Adjacent network

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

None

Confidentiality

None

Integrity

None

Availability

High