Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20221
Reference (s):
- https://seclists.org/fulldisclosure/2020/May/30
- https://seclists.org/fulldisclosure/2021/May/1