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Vulnerability record · CVE-2017-17538 · published 13 December 2017

CVE-2017-17538: Mikrotik router firmware vulnerability

Mikrotik · Router Firmware

MikroTik v6.40.5 devices allow remote attackers to cause a denial of service via a flood of ICMP packets.

7.5 CVSS 3.0 High EPSS 7.8% · top 5.5%
7.5CVSS 3.0 base score, v2 7.8
7.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

MikroTik v6.40.5 devices allow remote attackers to cause a denial of service via a flood of ICMP packets.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.exploit-db.com/exploits/43317/ ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/43317/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2018-10070Mikrotik router firmware uncontrolled resource consumption vulnerabilityA vulnerability in MikroTik Version 6.41.4 could allow an unauthenticated remote attacker to exhaust all available CPU and all available RAM by sendi…EPSS 13%

Source: NIST National Vulnerability Database (record CVE-2017-17538), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.