CVE-2018-25221

CRITICAL

EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter

Title source: cna

Description

EChat Server 3.1 contains a buffer overflow vulnerability in the chat.ghp endpoint that allows remote attackers to execute arbitrary code by supplying an oversized username parameter. Attackers can send a GET request to chat.ghp with a malicious username value containing shellcode and ROP gadgets to achieve code execution in the application context.

Exploits (1)

exploitdb WORKING POC
by Juan Sacco · pythonremotewindows
https://www.exploit-db.com/exploits/44155

References (2)

Scores

CVSS v3 9.8
EPSS 0.0010
EPSS Percentile 27.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (2)
echatserver/easy_chat_server < 3.1
Echatserver/EChat Server 3.1
Published Mar 28, 2026
Tracked Since Mar 29, 2026