CVE-2025-51495

HIGH

Mongoose <7.18 - Buffer Overflow

Title source: llm

Description

An integer overflow vulnerability exists in the WebSocket component of Mongoose 7.5 thru 7.17. By sending a specially crafted WebSocket request, an attacker can cause the application to crash. If downstream vendors integrate this component improperly, the issue may lead to a buffer overflow.

Exploits (1)

nomisec WRITEUP
by cainiao159357 · poc
https://github.com/cainiao159357/CVE-2025-51495

Scores

CVSS v3 7.5
EPSS 0.0026
EPSS Percentile 49.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-190
Status published
Products (1)
cesanta/mongoose 7.5 - 7.17
Published Sep 29, 2025
Tracked Since Feb 18, 2026