Buffer overflow in Tp-Link Tl-Wr841n
CVE-2026-9105
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.
Vulnerability class: Buffer Overflow
EPSS: 0.008 (53.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tp-link Tl-wr841n — versions 14
- Tp-link Tl-wr841n_firmware
- Tp-link Systems Inc. Tl-wr841m V14 — versions 0
- Tp-link Systems Inc. Tl-wr841n V14 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-9105?
- CVE-2026-9105 is a medium-severity vulnerability in Tp-Link Tl-Wr841n, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-06-29.
- How severe is CVE-2026-9105?
- Medium severity. CVSS v3 base score is 6.5 out of 10.