KEV Entry

CVE-2021-21745

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2021-21745

2021-10-20 15:20 UTC

Timestamps

2021-10-20

2021-10-20

Scope

ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform... | Affected: ZTE / MF971R | CVSS: 4.3 (MEDIUM) | EPSS: 0.55709 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-21745', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-21745'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2021-21745'}

a8860daa-f3c3-434a-a7a4-7d692a91ea21

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

2026-11-04 13:00 UTC

2026-11-04 13:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2021-10-20T15:20:50.000Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2021-21745",
  "cvss_estimated": false,
  "cvss_score": 4.3,
  "cvss_severity": "MEDIUM",
  "epss_percentile": 0.99041,
  "epss_score": 0.55709,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": null,
  "not_yet_in_cisa_kev": true,
  "previous_ids": [],
  "product": "MF971R",
  "title": "ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform...",
  "used_in_malware": "unknown",
  "vendor": "ZTE",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2021-21745"
}
 -
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