What’s Vulnerable › Vulnerabilities

CVE-2020-20222

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-05-18 · updated 2026-06-17
• Weakness: CWE-476

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).

Affected products

• MikroTik RouterOS: 6.44.6

References

• http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• https://mikrotik.com/
• http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• http://seclists.org/fulldisclosure/2021/May/15
• https://mikrotik.com/

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