CVE-2021-30166

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

3.78% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 89.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/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

2021-04-28 09:30Z5 YR AGO

Last updated

2024-09-17 03:43Z2 YR AGO

Reserved

2021-04-06

Assigning CNA

twcert

Record state

PUBLISHED

Severity

High (CVSS 7.2)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

8c8e840f9305ca5e667972e797b1b5de6e0786558bcc0bdd0154c835b6704a35

• www.twcert.org.twhttps://www.twcert.org.tw/tw/cp-132-4676-391a5-1.htmlx_refsource_MISC
• www.meritlilin.comhttps://www.meritlilin.com/assets/uploads/support/file/M00166-TW.pdfx_refsource_MISC
• gist.github.comhttps://gist.github.com/keniver/86ebef688fb274b534da51ef1a84dd3ex_refsource_MISC
• www.chtsecurity.comhttps://www.chtsecurity.com/news/0b733a38-e616-4ff3-86a6-13e710643388x_refsource_MISC