Known exploited · MikroTik

CVE-2018-7445: MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability

What it is

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.

Added September 8, 2022Due September 29, 2022CISA KEV catalog 2026.10.01

Vendor
MikroTik
Product
RouterOS
Added to KEV
September 8, 2022
CISA due date
September 29, 2022
Ransomware use
Unknown

What CISA requires

Apply updates per vendor instructions.

Forensic triage

No

What to do now

  1. Find every instance of RouterOS you run, including the forgotten ones, and check its version against the vendor advisory.
  2. Apply the vendor's fix or mitigation, before September 29, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
  3. Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.

References

CVE-2018-7445 in the National Vulnerability Database

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Source: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.