Input validation error in TL-WR840N EU v5 - CVE-2021-41653
Published: December 10, 2021 / Updated: August 3, 2023
Vulnerability identifier: #VU58820
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-41653
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input in the PING function. A remote authenticated attacker can pass specially crafted input to the application and execute arbitrary code on the target system.
Affected software
TL-WR840N EU v5
How to mitigate CVE-2021-41653
Install updates from vendor's website.
TL-WR840N EU v5 - update to TL-WR840N(EU)_V5_211109