KEV Entry

CVE-2026-33936

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-33936

2026-04-02 09:00 UTC

Timestamps

2026-04-02

2026-04-02

Scope

KEVIntel entry: python-ecdsa: Denial of Service via improper DER length validation in crafted private keys | Affected: tlsfuzzer / python-ecdsa | CVSS: 5.3 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-33936', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-33936'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-33936'}

17604779-a4ab-4f40-ac88-aedbc87c9b0f

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": "2026-04-02T09:00:05.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 5.3,
  "cvss_severity": "MEDIUM",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "python-ecdsa",
  "title": "python-ecdsa: Denial of Service via improper DER length validation in crafted private keys",
  "used_in_malware": "unknown",
  "vendor": "tlsfuzzer"
}
 -
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