CVE-2018-7445
Published 2018-03-19 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2018-7445 is a critical-severity (CVSS 9.8) vulnerability in MikroTik RouterOS. CISA added it to the Known Exploited Vulnerabilities catalog on September 8, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 29, 2022. CISA does not currently list it as used in ransomware campaigns. MikroTik has 5 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 5 known-exploited MikroTik vulnerabilities →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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: MikroTik — RouterOS
Name: MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability
Date added: 2022-09-08 · Due: 2022-09-29
Required action: Apply updates per vendor instructions.
References
- http://seclists.org/fulldisclosure/2018/Mar/38
- http://www.securityfocus.com/bid/103427
- https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-overflow
- https://www.exploit-db.com/exploits/44290/
- http://seclists.org/fulldisclosure/2018/Mar/38
- http://www.securityfocus.com/bid/103427
- https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-overflow
- https://www.exploit-db.com/exploits/44290/