KEV Entry

CVE-2018-10657

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2018-10657

2018-05-02 16:00 UTC

Timestamps

2018-05-02

2018-05-02

Scope

KEVIntel entry: Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable,... | Affected: Matrix / Synapse | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2018-10657', 'url': 'https://www.cve.org/CVERecord?id=CVE-2018-10657'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2018-10657'}

d1a9fafc-b235-4fd0-aaab-73453c522ebe

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:04 UTC

2026-06-23 14:04 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2018-05-02T16:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 7.5,
  "cvss_severity": "HIGH",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Synapse",
  "title": "Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable,...",
  "used_in_malware": "unknown",
  "vendor": "Matrix"
}
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