Mikrotik RouterOs 6.44.5 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/console process.

published 2021-07-07 5y ago modified 2026-09-16 last mo. also EUVD-2020-12999

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

Mikrotik RouterOs 6.44.5 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/console process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

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Exploit prediction

2.35% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

seclists.org http://seclists.org/fulldisclosure/2021/May/0 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

CWE-476 NULL Pointer Dereference

References

seclists.org /fulldisclosure/2021/May/0
exploit, mailing-list, third-party-advisory
mikrotik.com /
vendor-advisory
seclists.org /fulldisclosure/2020/Apr/7
seclists.org /fulldisclosure/2020/Jan/12

Sources

CVE List CVE-2020-20212
NVD CVE-2020-20212

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