KEV Entry

CVE-2021-42013

Known Exploited Vulnerability Entry Shadowserver

Back to Catalog View Vulnerability
Entry Details
Confirmed Exploited

CVE-2021-42013

2026-08-14 00:00 UTC

Characteristics

98.0

Timestamps

2024-07-19

2024-07-19

2026-08-14

Scope

Affected: Apache / Apache HTTP Server | Class: web-server | Severity: Critical (CVSS 9.8) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-08-14: 1026

References
  • {'id': 'CVE-2021-42013', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-42013'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

e8ee18e0-e94b-43a1-b1a5-d810997b2e7f

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

2026-07-01 05:53 UTC

2026-08-16 01:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
honeypot shadowserver in_the_wild_attempts 0.70
View details 
{
  "1d": "166",
  "30d_avg": 166,
  "7d_avg": 185,
  "90d_avg": 217,
  "cisa_kev": "yes",
  "class": "web-server",
  "connections": 1026,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2026-08-14",
  "product": "Apache HTTP Server",
  "type": "http-scan",
  "vendor": "Apache",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 9.8,
  "vulnerability_severity": "Critical"
}
 -
Export Options
JSON Object JSON API View Full Catalog