CVE-2023-54329

critical

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.

References

https://www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-command-execution-rce

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

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

https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md

Details

Source: Mitre, NVD

Published: 2026-01-13

Updated: 2026-01-30

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.00186