CVE-2020-20220
CVSS v3
6.5
MEDIUM
EPSS Score
2.7 %
exploit probability, as of 2026-10-07
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Mikrotik RouterOs prior to stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/bfd process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).
Technical details
- Published
- 2021-05-18
Frequently asked questions
What is CVE-2020-20220?
Mikrotik RouterOs prior to stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/bfd process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).
Is CVE-2020-20220 actively exploited?
Active exploitation of CVE-2020-20220 has not been confirmed. Its EPSS score was 2.7% on 2026-10-07, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-20220?
CVE-2020-20220 has a CVSS v3 base score of 6.5 (MEDIUM severity).
Is CVE-2020-20220 affecting your environment?
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