KEV Entry

CVE-2021-33564

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-33564

2025-07-01 00:00 UTC

Timestamps

2025-07-01

2025-07-01

Scope

KEVIntel entry: An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a... | Affected: markevans / Dragonfly | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-33564', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-33564'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-33564'}

6b462cfc-d466-42e4-97f4-d4b60df097b8

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:03 UTC

2026-06-23 14:03 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2025-07-01T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 9.8,
  "cvss_severity": "CRITICAL",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Dragonfly",
  "title": "An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a...",
  "used_in_malware": "unknown",
  "vendor": "markevans"
}
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