CVE-2018-7445

9.8 CRITICAL CISA KEV - Actively Exploited
Published: March 19, 2018 Modified: November 07, 2025

Description

A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2018/Mar/38
Source: cve@mitre.org
Exploit Mailing List Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/103427
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/44290/
Source: cve@mitre.org
Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2018/Mar/38
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Mailing List Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/103427
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-overflow
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.exploit-db.com/exploits/44290/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7445
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
85.9%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-09-29

Weaknesses (CWE)

Affected Vendors

mikrotik