CVE-2018-25193: Cesanta Mongoose Web Server

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Mongoose Web Server 6.9 contains a denial of service vulnerability that allows remote attackers to crash the service by establishing multiple socket connections. Attackers can repeatedly create connections to the default port and send malformed data to exhaust server resources and cause service unavailability.

Affected products

• Cesanta Mongoose Web Server: version 6.9 only

Published 2026-03-06. Last modified 2026-06-17.