KEV Entry

CVE-2021-22991

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-22991

2022-01-18 00:00 UTC

Timestamps

2022-01-18

2022-01-18

Scope

KEVIntel entry: On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3,... | Affected: F5 / BIG-IP | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-22991', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-22991'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-22991'}

a9d6a0f3-520d-43c5-80cc-ea2d076d413c

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:04 UTC

2026-06-23 14:04 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2022-01-18T00:00:00.000Z",
  "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": false,
  "product": "BIG-IP",
  "title": "On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3,...",
  "used_in_malware": "unknown",
  "vendor": "F5"
}
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