KEV Entry

CVE-2021-45046

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-45046

2023-05-01 00:00 UTC

Timestamps

2023-05-01

2023-05-01

Scope

KEVIntel entry: Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack | Affected: Apache Software Foundation / Apache Log4j | CVSS: 9.0 (CRITICAL) | Used in malware: yes | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-45046', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-45046'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-45046'}

674c0965-0abf-4fc4-a107-e0cb7bfa97ac

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:46 UTC

2026-06-19 12:46 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel confirmed_compromise 0.70
View details 
{
  "added_date": "2023-05-01T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 9.0,
  "cvss_severity": "CRITICAL",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "Apache Log4j",
  "title": "Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack",
  "used_in_malware": "yes",
  "vendor": "Apache Software Foundation"
}
 -
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