KEV Entry

CVE-2021-21017

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-21017

2021-11-03 00:00 UTC

Timestamps

2021-11-03

2021-11-03

Scope

KEVIntel entry: Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution | Affected: Adobe / Acrobat Reader | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-21017', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-21017'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-21017'}

47dfd02f-9599-4f26-ba4c-a18ee2bd85e3

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:47 UTC

2026-06-19 12:47 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2021-11-03T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 8.8,
  "cvss_severity": "HIGH",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "Acrobat Reader",
  "title": "Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution",
  "used_in_malware": "unknown",
  "vendor": "Adobe"
}
 -
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