CVE-2020-20266

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

2.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 80.0% 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

2021-05-19 11:20Z5 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
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

6059dea9915733abeb7d686e58d92a28e54111fb8676b204252eeae4aa9e6222

• github.comhttps://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_dot1x/README.mdx_refsource_MISC
• seclists.orghttps://seclists.org/fulldisclosure/2021/May/11x_refsource_MISC