CVE-2026-9105: Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface

Published Jun 29, 2026
·
Updated

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.

Affected Software

3 affected components
TP-Link TL-WR841N=v14
All of the following
TP-Link TL-WR841N firmware<14_260518
TP-Link TL-WR841N=14

Event History

Jun 29, 2026
CVE Published
via MITRE·04:05 PM
Data Sourced
via MITRE·04:05 PM
DescriptionWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Apr 11, 58531
Event
via FIRST·04:26 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-9105?

The severity of CVE-2026-9105 is classified as medium with a CVSS score of 6.8.

2

How do I fix CVE-2026-9105?

To fix CVE-2026-9105, users should update the firmware of the TP-Link TL-WR841N to the latest version available from the manufacturer.

3

What are the risks associated with CVE-2026-9105?

CVE-2026-9105 allows an authenticated attacker to exploit a stack-based buffer overflow, potentially causing a crash of the web management interface.

4

Which devices are affected by CVE-2026-9105?

CVE-2026-9105 affects the TP-Link TL-WR841N, specifically version 14 of its firmware.

5

Can CVE-2026-9105 be exploited remotely?

Yes, CVE-2026-9105 can be exploited remotely by an authenticated attacker through crafted HTTP requests.

Contact

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