KEV Entry

CVE-2021-23758

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2021-23758

2026-08-26 17:00 UTC

Timestamps

2026-08-26

2026-08-26

Scope

Deserialization of Untrusted Data | Affected: michaelschwarz / AjaxPro.2 | CVSS: 8.1 (HIGH) | EPSS: 0.89096 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-23758', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-23758'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2021-23758'}

3b82890a-b32d-4df3-a18a-7bef29f093cb

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-08-27 18:00 UTC

2026-08-27 18:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-08-26T17:00:09.897Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 8.1,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.99768,
  "epss_score": 0.89096,
  "feed": "Previdian (previdian.com)",
  "not_yet_in_cisa_kev": false,
  "product": "AjaxPro.2",
  "title": "Deserialization of Untrusted Data",
  "used_in_malware": "unknown",
  "vendor": "michaelschwarz"
}
 -
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