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CVE

CWE

Training

CVE-2023-54330

Published: Jan 13, 2026

Modified: Mar 5, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
Inbit	Inbit Messenger	affected `4.6.0 - <= 4.9.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ExploitDB-51126

exploit

Archived Software Download Page

product

Exploit Write-Up

technical-description

VulnCheck Advisory: Inbit Messenger 4.9.0 - Unauthenticated Remote SEH Overflow

third-party-advisory

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