KEV Entry

CVE-2021-27877

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2021-27877

2023-04-07 02:00 CEST

Timestamps

2023-04-07

2023-04-07

Scope

An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This... | Affected: Veritas / Backup Exec | CVSS: 8.2 (HIGH) | EPSS: 0.6491 | Used in malware: yes | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-27877', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-27877'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2021-27877'}

419097f6-4667-42e1-85f2-8cd783d7739a

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

2026-10-02 09:11 CEST

2026-10-02 09:11 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian confirmed_compromise 0.70
View details 
{
  "added_date": "2023-04-07T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2021-27877",
  "cvss_estimated": false,
  "cvss_score": 8.2,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.99228,
  "epss_score": 0.6491,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": null,
  "not_yet_in_cisa_kev": false,
  "previous_ids": [],
  "product": "Backup Exec",
  "title": "An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This...",
  "used_in_malware": "yes",
  "vendor": "Veritas",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2021-27877"
}
 -
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