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CVE-2023-54330

CRITICAL

9.8

Description

Inbit Messenger versions 4.6.0 to 4.9.0 contain a remote stack-based buffer overflow vulnerability that allows unauthenticated attackers to execute arbitrary code by sending malformed network packets. Attackers can craft a specially designed payload targeting the messenger's network handler to overwrite the Structured Exception Handler (SEH) and execute shellcode on vulnerable Windows systems.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/13/2026

Last Modified1/30/2026

Sourcenvd

Honeypot Sightings0

Affected Products

inbit:inbit_messenger

Weaknesses (CWE)

CWE-121CWE-787

References

https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md(disclosure@vulncheck.com)

https://web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messenger-Basic-Edition.html(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/51126(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-seh-overflow(disclosure@vulncheck.com)

https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.