CVE-2023-30800: MikroTik RouterOS

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

The web server used by MikroTik RouterOS version 6 is affected by a heap memory corruption issue. A remote and unauthenticated attacker can corrupt the server's heap memory by sending a crafted HTTP request. As a result, the web interface crashes and is immediately restarted. The issue was fixed in RouterOS 6.49.10 stable. RouterOS version 7 is not affected.

Affected products

• MikroTik RouterOS: from 6.0, before 6.49.10 (fixed in 6.49.10)

Published 2023-09-07. Last modified 2026-06-17.