KEV Entry

CVE-2021-28151

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-28151

2025-02-13 00:00 UTC

Characteristics

88.0

Timestamps

2023-10-14

2023-10-14

2025-02-13

Scope

Affected: Hongdian / H8922 | Class: router | Severity: High (CVSS 8.8) | IoT: yes | In CISA KEV: no | Honeypot connections on 2025-02-13: 4

References
  • {'id': 'CVE-2021-28151', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-28151'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

e4e6ab77-fd87-404f-b21e-5bc5f7e6f57f

c8fb6bf1-f81f-4cb8-95b1-eadbb3b54ee8

2026-07-01 05:54 UTC

2026-07-01 13:14 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
honeypot shadowserver in_the_wild_attempts 0.70
View details 
{
  "1d": "2",
  "30d_avg": 0,
  "7d_avg": 0,
  "90d_avg": 1,
  "cisa_kev": "no",
  "class": "router",
  "connections": 4,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "yes",
  "observation_date": "2025-02-13",
  "product": "H8922",
  "type": "http-scan",
  "vendor": "Hongdian",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 8.8,
  "vulnerability_severity": "High"
}
 -
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