KEV Entry

CVE-2026-34621

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-34621

2026-06-01 13:07 UTC

Timestamps

2026-06-01

2026-06-01

Scope

KEVIntel entry: Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321) | Affected: Adobe / Acrobat Reader | CVSS: 8.6 (HIGH) | EPSS: 0.07086 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2026-34621', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-34621'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-34621'}

8d0fd6cd-faa0-4cda-ade0-1d0a71e142c6

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-01T13:07:13.584Z",
  "ahead_of_cisa_kev": {
    "count": 1,
    "unit": "day"
  },
  "cvss_score": 8.6,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.93407,
  "epss_score": 0.07086,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "Acrobat Reader",
  "title": "Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027) (CWE-1321)",
  "used_in_malware": "unknown",
  "vendor": "Adobe"
}
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