CVE-2020-20254

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_lcdstat_2/README.mdBroken Link, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/May/14Exploit, Mailing List, Third Party Advisory
https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_lcdstat_2/README.mdBroken Link, Third Party Advisory

Timeline

Published: May 18, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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