What’s Vulnerable › Vulnerabilities

CVE-2018-25193: Mongoose Web Server 6.9 Denial of Service via Socket Connection

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-06 · updated 2026-06-17
• Weakness: CWE-1188

Description

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: 6.9

References

• https://www.exploit-db.com/exploits/45819
• https://www.vulncheck.com/advisories/mongoose-web-server-denial-of-service-via-socket-connection

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