What’s Vulnerable › Vulnerabilities

CVE-2020-20231

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-14 · updated 2026-06-17
• Weakness: CWE-476

Description

Mikrotik RouterOs through stable version 6.48.3 suffers from a memory corruption vulnerability in the /nova/bin/detnet process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Affected products

• MikroTik RouterOS: from 6.44.6 through 6.48.3

References

• https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20231/README.md
• https://mikrotik.com/
• https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20231/README.md
• https://mikrotik.com/

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