CVE-2023-4494

CRITICAL

Easy Chat Server 3.1 - Stack-based Buffer Overflow via Long Username in Register Handler

Title source: llm

Description

Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version. An attacker could send an excessively long username string to the register.ghp file asking for the name via a GET request resulting in arbitrary code execution on the remote machine.

References (1)

Core 1

Core References

Third Party Advisory

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-products

Scores

CVSS v3 9.8

EPSS 0.0090

EPSS Percentile 55.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-119

Status published

Products (1)

easy_chat_server_project/easy_chat_server 3.1

Published Oct 04, 2023

Tracked Since Feb 18, 2026