CVE-2021-33564

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

72.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-05-29 13:19Z5 YR AGO

Last updated

2024-08-03 23:50Z2 YR AGO

Reserved

2021-05-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')Base

Data version

5.1

Document digest

658450af31a769ed61211384e684ac31a5fa728cf6769f5188d1b78b281398c6

• github.comhttps://github.com/markevans/dragonfly/issues/513x_refsource_MISC
• github.comhttps://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5x_refsource_MISC
• github.comhttps://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0x_refsource_MISC
• raw.githubusercontent.comhttps://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yamlx_refsource_MISC
• github.comhttps://github.com/mlr0p/CVE-2021-33564x_refsource_MISC
• zxsecurity.co.nzhttps://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/x_refsource_MISC