MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability

Added to KEV
2022-09-08
Federal due date
2022-09-29
Vendor
MikroTik
Product
RouterOS
EPSS
99.5th percentile (score 0.876, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2018-7445

CISA short 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.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.