KEV Entry

CVE-2016-10033

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2016-10033

2026-06-01 12:36 CEST

Timestamps

2026-06-01

2026-06-01

Scope

The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command... | Affected: PHPMailer / PHPMailer | CVSS: 9.8 (CRITICAL) | EPSS: 0.99714 | Used in malware: unknown | Listed 1 day ahead of CISA KEV | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2016-10033', 'url': 'https://www.cve.org/CVERecord?id=CVE-2016-10033'}
  • {'id': 'GHSA-5F37-GXVH-23V6', 'url': 'https://github.com/advisories/GHSA-5F37-GXVH-23V6'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2016-10033'}

bef26d47-bd9a-436d-8f60-3d9e9028daa9

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

2026-10-02 09:10 CEST

2026-10-02 09:10 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-01T10:36:30.804Z",
  "ahead_of_cisa_kev": {
    "count": 1,
    "unit": "day"
  },
  "cve_id": "CVE-2016-10033",
  "cvss_estimated": false,
  "cvss_score": 9.8,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.99951,
  "epss_score": 0.99714,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": "GHSA-5F37-GXVH-23V6",
  "not_yet_in_cisa_kev": false,
  "previous_ids": [],
  "product": "PHPMailer",
  "title": "The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command...",
  "used_in_malware": "unknown",
  "vendor": "PHPMailer",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2016-10033"
}
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