CVE-2020-20222

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.9% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-05-18 18:21Z5 YR AGO

Last updated

2024-08-04 14:15Z2 YR AGO

Reserved

2020-08-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

e7b5ab63bad4a42e0e57f1745448dd63f7981392656ee3583ca33fb89c26036d

• mikrotik.comhttps://mikrotik.com/x_refsource_MISC
• seclists.org20210507 Four vulnerabilities found in MikroTik's RouterOShttp://seclists.org/fulldisclosure/2021/May/15mailing-listx_refsource_FULLDISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.htmlx_refsource_MISC