Input validation error in MikroTik RouterOS - CVE-2019-3924
Published: February 25, 2019 / Updated: June 17, 2021
Vulnerability identifier: #VU17851
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2019-3924
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: MikroTik
Affected software:
MikroTik RouterOS
MikroTik RouterOS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Winbox service. A remote attacker can send a specially crafted request to the affected service and trigger denial of service conditions.
Successful exploitation of the vulnerability requires that the Winbox service is exposed to the attacker.
How to mitigate CVE-2019-3924
Install updates from vendor's website.