AUGUST 4, 2026
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Case File

CVE-2018-25221

CRITICAL · CVSS 9.8 EPSS 0.82% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-03-28 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
code execution
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-25221
Severity
CRITICAL
CVSS
9.8
EPSS
0.82%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)