CVE-2021-23359

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

1.65% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 74.5% 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 2026-06-17.

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

2021-03-18 12:40Z5 YR AGO

Last updated

2024-09-17 03:18Z1 YR AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

54b0114d0a9f4c43a4079f2b22a4051a602bc6aed93bd49174cd8de6323b3ef1

• snyk.iohttps://snyk.io/vuln/SNYK-JS-PORTKILLER-1078533x_refsource_MISC
• github.comhttps://github.com/tylerjpeterson/port-killer/blob/1ca3a99ad80cc9ed5498d12b185189c10329025b/index.js%23L19x_refsource_MISC