CVE-2020-21883

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

4.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.0% of scored records. A rank, not a probability.

NVD base score

8.8 (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:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-09.

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

2021-04-09 12:19Z5 YR AGO

Last updated

2026-07-09 00:10Z1 MO 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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

a2b5c61fa788f5c7e84b5b09f3c8aa5d9f7f7cf4b1202d331859e1e7fccee313

• s3curityb3ast.github.iohttps://s3curityb3ast.github.io/KSA-Dev-009.txt
• www.mail-archive.comhttps://www.mail-archive.com/fulldisclosure@seclists.org/msg07140.html
• www.mail-archive.comhttps://www.mail-archive.com/fulldisclosure%40seclists.org/msg07140.htmlx_refsource_MISC