KEV Entry

CVE-2021-40438

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-40438

2025-02-13 00:00 UTC

Characteristics

90.0

Timestamps

2023-10-14

2023-10-14

2025-02-13

Scope

Affected: Apache / Apache HTTP Server | Class: web-server | Severity: Critical (CVSS 9) | IoT: no | In CISA KEV: yes | Honeypot connections on 2025-02-13: 1

References
  • {'id': 'CVE-2021-40438', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-40438'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

830d0342-b044-4e8f-9ca0-55ee097201fe

c8fb6bf1-f81f-4cb8-95b1-eadbb3b54ee8

2026-07-01 05:53 UTC

2026-07-01 13:15 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": 0,
  "cisa_kev": "yes",
  "class": "web-server",
  "connections": 1,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2025-02-13",
  "product": "Apache HTTP Server",
  "type": "http-scan",
  "vendor": "Apache",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 9,
  "vulnerability_severity": "Critical"
}
 -
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