KEV Entry

CVE-2021-4461

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-4461

2026-06-01 10:43 UTC

Timestamps

2026-06-01

2026-06-01

Scope

KEVIntel entry: Seeyon Zhiyuan OA Web Application System < 7.0 SP1 Authentication Bypass | Affected: Seeyon / Zhiyuan OA Web Application System | CVSS: 9.3 (CRITICAL) | EPSS: 0.00551 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-4461', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-4461'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-4461'}

06d57e76-aa95-42f0-9fb1-3d0572311812

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": "2026-06-01T10:43:10.427Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 9.3,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.41663,
  "epss_score": 0.00551,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Zhiyuan OA Web Application System",
  "title": "Seeyon Zhiyuan OA Web Application System \u003c 7.0 SP1 Authentication Bypass",
  "used_in_malware": "unknown",
  "vendor": "Seeyon"
}
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