Critical severity9.8NVD Advisory· Published Mar 28, 2026· Updated Apr 2, 2026
CVE-2018-25221
CVE-2018-25221
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.
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Affected products
1Patches
Vulnerability mechanics
References
2- www.exploit-db.com/exploits/44155nvdExploit
- www.vulncheck.com/advisories/echat-server-buffer-overflow-via-chat-ghp-username-parameternvdThird Party Advisory
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