MikroTik RouterOS Uncontrolled Resource Consumption (CVE-2018-5951)

high Tenable OT Security Plugin ID 502011


The remote OT asset is affected by a vulnerability.


An issue was discovered in Mikrotik RouterOS. Crafting a packet that has a size of 1 byte and sending it to an IPv6 address of a RouterOS box with IP Protocol 97 will cause RouterOS to reboot imminently. All versions of RouterOS that supports EoIPv6 are vulnerable to this attack.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.


Refer to the vendor advisory.

See Also


Plugin Details

Severity: High

ID: 502011

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 2/27/2024

Updated: 2/28/2024

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2018-5951


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:mikrotik:routeros

Required KB Items: Tenable.ot/MikroTik

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/2/2020

Vulnerability Publication Date: 3/2/2020

Reference Information

CVE: CVE-2018-5951