CVE-2020-20222

Public Exploit

Description

Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.76% Top 30%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory seclists.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://mikrotik.com/ product
http://seclists.org/fulldisclosure/2021/May/15 third party advisory mailing list exploit
http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html third party advisory exploit vdb entry

Frequently Asked Questions

What is the severity of CVE-2020-20222?
CVE-2020-20222 has been scored as a medium severity vulnerability.
How to fix CVE-2020-20222?
To fix CVE-2020-20222, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-20222 being actively exploited in the wild?
It is possible that CVE-2020-20222 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.