CVE-2021-27877

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-27877

Confirmed

Yes

2023-04-07 00:00 UTC

Timestamps

2023-04-07

2023-04-07

Scope

KEV entry: Veritas Backup Exec Agent Improper Authentication Vulnerability | Affected: Veritas / Backup Exec Agent | Description: Veritas Backup Exec (BE) Agent contains an improper authentication vulnerability that could allow an attacker unauthorized access to the BE Agent via SHA authentication scheme. | Required action: Apply updates per vendor instructions. | Due date: 2023-04-28 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://www.veritas.com/support/en_US/security/VTS21-001; https://nvd.nist.gov/vuln/detail/CVE-2021-27877

References
  • {'id': 'CVE-2021-27877', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-27877'}

4dac3bdf-00b4-4efe-a765-0f70ab838285

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:25 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-287"
  ],
  "date_added": "2023-04-07",
  "due_date": "2023-04-28",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Known",
  "product": "Backup Exec Agent",
  "vendorProject": "Veritas",
  "vulnerabilityName": "Veritas Backup Exec Agent Improper Authentication Vulnerability"
}
 -
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