CVE-2018-25221
9.8 · CRITICALOverview
CVE-2018-25221 is a critical-severity vulnerability affecting echatserver easy_chat_server. It was published on March 28, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from echatserver. Update easy_chat_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| echatserver | easy_chat_server | 0 | Affected |
Frequently Asked Questions
What is CVE-2018-25221?
CVE-2018-25221 is a critical-severity vulnerability affecting echatserver easy_chat_server. It was published on March 28, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2018-25221?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-25221?
Check the references section for vendor advisories and patches from echatserver. Update easy_chat_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-25221?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-25221 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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