KEV Entry

CVE-2026-73570

Known Exploited Vulnerability Entry Shadowserver

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Entry Details
Confirmed Exploited

CVE-2026-73570

2026-08-24 00:00 UTC

Characteristics

89.0

Timestamps

2026-08-23

2026-08-23

2026-08-24

Scope

Affected: Synacor / Zimbra Collaboration Suite | Class: email | Severity: High (CVSS 8.9) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-08-24: 286

References
  • {'id': 'CVE-2026-73570', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-73570'}
  • {'id': 'shadowserver', 'url': 'https://www.shadowserver.org/what-we-do/network-reporting/honeypot-exploited-vulnerabilities-report/'}

dc655d8f-5cbd-4e1c-bd71-b4a0693930d2

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

2026-08-25 01:00 UTC

2026-08-26 01:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
honeypot shadowserver in_the_wild_attempts 0.70
View details 
{
  "1d": "4",
  "30d_avg": 0,
  "7d_avg": 1,
  "90d_avg": 0,
  "cisa_kev": "yes",
  "class": "email",
  "connections": 286,
  "feed": "Shadowserver Foundation honeypot/exploited-vulnerabilities",
  "iot": "no",
  "observation_date": "2026-08-24",
  "product": "Zimbra Collaboration Suite",
  "type": "http-scan",
  "vendor": "Synacor",
  "vulnerability_class": "CVSS",
  "vulnerability_score": 8.9,
  "vulnerability_severity": "High"
}
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