CVE-2020-20230

6.5 mediumEPSS 1.9%

Medium (6.5) in mikrotik routeros. EPSS 1.9% chance of exploitation in the next 30 days.

Mikrotik RouterOs before stable 6.47 suffers from an uncontrolled resource consumption in the sshd process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2021-07-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mikrotik:routeros

References

https://cwe.mitre.org/data/definitions/400.html
https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20230/README.md
https://cwe.mitre.org/data/definitions/400.html
https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20230/README.md

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