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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.011 (64.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
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.