What is CVE-2020-20230?

CVE-2020-20230 is a medium-severity vulnerability in Mikrotik Routeros, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-07-19.

How severe is CVE-2020-20230?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2020-20230 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Mikrotik Routeros

CVE-2020-20230

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.019 (78.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mikrotik Routeros
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-20230

References

cve@mitre.org (Technical Description, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-20230?: CVE-2020-20230 is a medium-severity vulnerability in Mikrotik Routeros, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-07-19.
How severe is CVE-2020-20230?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-20230 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.