CVE-2026-9105 Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
An authenticated attacker can trigger a stack buffer overflow in the TP-Link TL-WR841N web interface, causing a device crash and reboot.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9105?
CVE-2026-9105 is a medium-severity memory corruption vulnerability in TP-Link Systems Inc. TL-WR841N v14, published on 29 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-9105?
It affects 1 product.
Products include Tp-Link Tl-Wr841n Firmware.
How do I fix CVE-2026-9105?
No fix has been published for CVE-2026-9105 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-9105 being exploited?
There is no known exploitation of CVE-2026-9105 in the wild and no public exploit code.
Other vulnerabilities in TP-Link Systems Inc. TL-WR841N v14
Sources
Also known as GHSA-whjh-xgqc-hvvf.