KEV Entry

CVE-2021-20123

Known Exploited Vulnerability Entry Shadowserver

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Entry Details
Confirmed Exploited

CVE-2021-20123

2026-08-22 00:00 UTC

Characteristics

75.0

Timestamps

2024-09-04

2024-09-04

2026-08-22

Scope

Affected: Draytek / VigorConnect | Class: device-management-platform | Severity: High (CVSS 7.5) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-08-22: 15

References
  • {'id': 'CVE-2021-20123', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-20123'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

cf44aef9-6847-41f7-9c7a-d9fc10802c7a

Shadowserver
c8fb6bf1-f81f-4cb8-95b1-eadbb3b54ee8

2026-07-01 05:54 UTC

2026-08-24 01:01 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
honeypot shadowserver in_the_wild_attempts 0.70
View details 
{
  "1d": "1",
  "30d_avg": 0,
  "7d_avg": 0,
  "90d_avg": 4,
  "cisa_kev": "yes",
  "class": "device-management-platform",
  "connections": 15,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2026-08-22",
  "product": "VigorConnect",
  "type": "http-scan",
  "vendor": "Draytek",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 7.5,
  "vulnerability_severity": "High"
}
 -
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