KEV Entry

CVE-2021-20092

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-20092

2026-06-21 00:00 UTC

Characteristics

75.0

Timestamps

2025-02-25

2025-02-25

2026-06-21

Scope

Affected: Buffalo / Buffalo SR-2533DHPL2 and WSR-2533DHP3 | Class: router | Severity: High (CVSS 7.5) | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-06-21: 20

References
  • {'id': 'CVE-2021-20092', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-20092'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

e17a90f6-e845-458e-833c-49f0f91df08a

c8fb6bf1-f81f-4cb8-95b1-eadbb3b54ee8

2026-07-01 07:17 UTC

2026-07-01 12:44 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": 1,
  "90d_avg": 0,
  "cisa_kev": "no",
  "class": "router",
  "connections": 20,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "yes",
  "observation_date": "2026-06-21",
  "product": "Buffalo SR-2533DHPL2 and WSR-2533DHP3",
  "type": "http-scan",
  "vendor": "Buffalo",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 7.5,
  "vulnerability_severity": "High"
}
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