HIGH

CVE-2018-5951

CVSS v3

7.5

HIGH

EPSS Score

4.3 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-5951 yet.

Full record on NVD

Description

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.

Technical details

Published: 2020-03-02

Frequently asked questions

What is CVE-2018-5951?

Is CVE-2018-5951 actively exploited?

Active exploitation of CVE-2018-5951 has not been confirmed. Its EPSS score was 4.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-5951?

CVE-2018-5951 has a CVSS v3 base score of 7.5 (HIGH severity).

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