CVE-2023-54330: Inbit Messenger 4.9.0 - Unauthenticated Remote SEH Overflow

Published Jan 13, 2026
·
Updated

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.

Affected Software

2 affected components
Inbit Messenger>=4.6.0<4.9.0
Inbit Inbit Messenger>=4.6.0<=4.9.0

Event History

Jan 13, 2026
CVE Published
via MITRE·10:52 PM
Data Sourced
via MITRE·10:52 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2023-54330?

CVE-2023-54330 is classified as a critical severity vulnerability due to the potential for unauthenticated remote code execution.

2

How do I fix CVE-2023-54330?

To fix CVE-2023-54330, update Inbit Messenger to version 4.10.0 or later where the vulnerability is patched.

3

Who is affected by CVE-2023-54330?

CVE-2023-54330 affects all versions of Inbit Messenger from 4.6.0 to 4.9.0.

4

What type of vulnerability is CVE-2023-54330?

CVE-2023-54330 is a remote stack-based buffer overflow vulnerability.

5

Can attackers exploit CVE-2023-54330 without authentication?

Yes, attackers can exploit CVE-2023-54330 without authentication by sending specially crafted network packets.

Contact

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