KEV Entry

CVE-2016-5312

Known Exploited Vulnerability Entry Shadowserver

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Entry Details
Confirmed Exploited

CVE-2016-5312

2026-08-15 12:52 UTC

Characteristics

65.0

Timestamps

2026-08-15

2026-08-15

2026-08-15

Scope

Affected: Symantec / Symantec Messaging Gateway | Class: email | Severity: Medium (CVSS 6.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-08-15: 15

References
  • {'id': 'CVE-2016-5312', 'url': 'https://www.cve.org/CVERecord?id=CVE-2016-5312'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

7b3ad787-178e-4521-800b-fd25e072c21f

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

2026-08-17 01:01 UTC

2026-08-17 01:01 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": "no",
  "class": "email",
  "connections": 15,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2026-08-15",
  "product": "Symantec Messaging Gateway",
  "type": "http-scan",
  "vendor": "Symantec",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 6.5,
  "vulnerability_severity": "Medium"
}
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