Buffer overflow in Inbit Messenger
CVE-2023-54329
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.001
Affected products
- Inbit Messenger — versions 4.6.0
- Inbit Messenger
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51127 (Exploit, exploit)
- web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messeng… (Product, product)
- github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md (Exploit, technical-description, Third Party Advisory)
- www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-command-exe… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-54329?
- CVE-2023-54329 is a critical-severity vulnerability in Inbit Messenger, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-01-13.
- How severe is CVE-2023-54329?
- Critical severity. CVSS v3 base score is 9.8 out of 10.