CVE-2018-25221
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Mar 28, 2026
Vendor
unknown
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.