CVE-2023-54330 - CVE House
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Status published Critical CVE-2023-54330

Inbit Messenger 4.9.0 - Unauthenticated Remote SEH Overflow

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • a-rey

Affected Vendor

Affected Software

Inbit Messenger
Vulnerable Versions:
4.6.0

Timeline

Official Publish: January 13th, 2026
Last Modified: March 5th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)