CVE-2018-7445
· published 2018-03-19
Source record Collected from the National Vulnerability Database (NVD)
CISA Known Exploited Vulnerabilities
CISA lists this CVE as known exploited (added 2022-09-08).
- CISA's name for it: MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability
- CISA's description: In MikroTik RouterOS, a stack-based buffer overflow occurs when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system.
- Known ransomware campaign use, per CISA: Unknown
Source: CISA KEV catalog (CC0 1.0).
Description
Description by MITRE via the CVE Program.
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.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 9.8 CRITICAL — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1: 9.8 CRITICAL — as published by CISA-ADP (Secondary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0: 10 HIGH — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:C/I:C/A:C - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: active · Automatable: yes · Technical impact: total
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- 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/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7445
Source dates: published 2018-03-19, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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