CVE-2018-25221

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/28/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

echatserver:easy_chat_server

Weaknesses (CWE)

CWE-787

References

https://www.exploit-db.com/exploits/44155(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/echat-server-buffer-overflow-via-chat-ghp-username-parameter(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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