KEV Entry

CVE-2023-54391

Known Exploited Vulnerability Entry Previdian

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Entry Details

Confirmed Exploited

Vulnerability ID

CVE-2023-54391

Status Updated At

2026-09-01 20:57 UTC

Timestamps

First Seen At

2026-09-01

Asserted At

2026-09-01

Scope

Notes

Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter | Affected: Proxmox Server Solutions / Proxmox Virtual Environment (VE) | CVSS: 9.3 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

References

{'id': 'CVE-2023-54391', 'url': 'https://www.cve.org/CVERecord?id=CVE-2023-54391'}
{'id': 'previdian', 'url': 'https://previdian.com/CVE-2023-54391'}

Entry UUID

ce52882c-0d61-41c3-9434-ec6938f4d139

Catalog

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

Created

2026-09-02 21:00 UTC

Last Updated

2026-09-02 21:00 UTC

Evidence

Type Source Signal Confidence Details GCVE Metadata

Type	Source	Signal	Confidence	Details	GCVE Metadata
public_report	previdian	successful_exploitation	0.70	View details `{ "added_date": "2026-09-01T20:57:00.000Z", "ahead_of_cisa_kev": null, "cvss_score": 9.3, "cvss_severity": "CRITICAL", "epss_percentile": null, "epss_score": null, "feed": "Previdian (previdian.com)", "not_yet_in_cisa_kev": true, "product": "Proxmox Virtual Environment (VE)", "title": "Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter", "used_in_malware": "unknown", "vendor": "Proxmox Server Solutions" }`	-

public_report

previdian

successful_exploitation

0.70

View details

{
  "added_date": "2026-09-01T20:57:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 9.3,
  "cvss_severity": "CRITICAL",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "Previdian (previdian.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Proxmox Virtual Environment (VE)",
  "title": "Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter",
  "used_in_malware": "unknown",
  "vendor": "Proxmox Server Solutions"
}

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