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.
Published: 2026-03-28
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Sat, 28 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
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.
Title EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-28T11:58:13.951Z

Reserved: 2026-03-28T11:47:06.776Z

Link: CVE-2018-25221

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-28T12:16:02.793

Modified: 2026-03-28T12:16:02.793

Link: CVE-2018-25221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses