CVE-2018-25193

HIGH 7.5

Mongoose Web Server 6.9 Denial of Service via Socket Connection

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1188
Vendor	cesanta
Product	mongoose web server
Published	Mar 6, 2026
Last Updated	Mar 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Cesanta / Mongoose Web Server

6.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Ihsan Sencan