CVE-2020-20253

Public Exploit

Description

Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.19% Top 25%
Third-Party Advisory seclists.org Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_lcdstat_4/README.md third party advisory broken link
http://seclists.org/fulldisclosure/2021/May/14 mailing list exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-20253?
CVE-2020-20253 has been scored as a medium severity vulnerability.
How to fix CVE-2020-20253?
To fix CVE-2020-20253, 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-2020-20253 being actively exploited in the wild?
It is possible that CVE-2020-20253 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.
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