CVE-2019-17147

HIGH

Tp-link Tl-wr841n Firmware - Buffer Overflow

Title source: rule

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8457.

Exploits (3)

nomisec WRITEUP 4 stars
by DrmnSamoLiu · poc
https://github.com/DrmnSamoLiu/CVE-2019-17147_Practice_Material
nomisec WRITEUP 1 stars
by imnot-ye · poc
https://github.com/imnot-ye/CVE-2019-17147

References (2)

Scores

CVSS v3 8.8
EPSS 0.2200
EPSS Percentile 95.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

CWE
CWE-120
Status published

Affected Products (1)

tp-link/tl-wr841n_firmware

Timeline

Published Jan 07, 2020
Tracked Since Feb 18, 2026