CVE-2020-20237

6.5 mediumEPSS 2.8%

Medium (6.5) in mikrotik routeros. EPSS 2.8% chance of exploitation in the next 30 days.

Mikrotik RouterOs 6.46.3 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.

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: 2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-05-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mikrotik:routeros

References

http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html
http://seclists.org/fulldisclosure/2021/May/15
http://seclists.org/fulldisclosure/2021/May/15
http://seclists.org/fulldisclosure/2021/May/15
http://seclists.org/fulldisclosure/2021/May/15

Check your stack JSON