KEV Entry

CVE-2021-39935

Known Exploited Vulnerability Entry Shadowserver

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Entry Details
Confirmed Exploited

CVE-2021-39935

2026-10-21 00:00 UTC

Characteristics

68.0

Timestamps

2026-09-16

2026-09-16

2026-10-21

Scope

Affected: GitLab / GitLab CE/EE | Class: other-software | Severity: Medium (CVSS 6.8) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-10-21: 2

References
  • {'id': 'CVE-2021-39935', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-39935'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

b3f3ca54-fb22-4262-99c3-c0559476e1cb

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

2026-10-21 09:12 UTC

2026-10-23 01:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
honeypot shadowserver in_the_wild_attempts 0.70
View details 
{
  "1d": "2",
  "30d_avg": 1,
  "7d_avg": 1,
  "90d_avg": 0,
  "cisa_kev": "yes",
  "class": "other-software",
  "connections": 2,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2026-10-21",
  "product": "GitLab CE/EE",
  "type": "http-scan",
  "vendor": "GitLab",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 6.8,
  "vulnerability_severity": "Medium"
}
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