CVE-2023-54329

CRITICAL

Inbit Messenger < 4.9.0 - Out-of-Bounds Write

Title source: rule

Description

Inbit Messenger 4.6.0 - 4.9.0 contains a remote command execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by exploiting a stack overflow in the messenger's protocol. Attackers can send specially crafted XML packets to port 10883 with a malicious payload to trigger the vulnerability and execute commands with system privileges.

Exploits (1)

exploitdb WORKING POC

by a-rey · pythonremotewindows

https://www.exploit-db.com/exploits/51127

View Code ZIP pw:eip

References (4)

[Exploit, Third Party Advisory] https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md

[Product] https://web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messenger-Basic-Edition.html

[Exploit] https://www.exploit-db.com/exploits/51127

[Third Party Advisory] https://www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-command-execution-rce

Scores

CVSS v3 9.8

EPSS 0.0056

EPSS Percentile 68.3%

Attack Vector NETWORK

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

Details

CWE

CWE-787 CWE-121

Status published

Products (1)

inbit/inbit_messenger 4.6.0 - 4.9.0

Published Jan 13, 2026

Tracked Since Feb 18, 2026