CVE-2023-54330

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md	Exploit Third Party Advisory
https://web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messenger-Basic-Edition.html	Product
https://www.exploit-db.com/exploits/51126	Exploit Third Party Advisory
https://www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-seh-overflow	Third Party Advisory
https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:inbit:inbit_messenger:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-13 23:16

Updated : 2026-01-30 15:48

NVD link : CVE-2023-54330

Mitre link : CVE-2023-54330

CVE.ORG link : CVE-2023-54330

JSON object : View

Products Affected

inbit

inbit_messenger

CWE

CWE-121

Stack-based Buffer Overflow

CWE-787

Out-of-bounds Write

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