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CVE-2018-25221

EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter

CVSS 4.0 9.3 CRITICALCVSS 3.1 9.8 CRITICALCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2018-25221

Published

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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Advisory history

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23 Oct 2026 15:48:27 UTC

EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter

cve-program · CVE-2018-25221 · Published

This historical link shows only this version and versions saved before it. Browse all advisory history.

ChangeIntel

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Sources read 12 Nov 16:29 UTC · 265 of 275 readable · 263 fully read · documentation 469/469 current

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