Critical severity9.8NVD Advisory· Published Jan 13, 2026· Updated Jun 17, 2026
CVE-2023-54330
CVE-2023-54330
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.
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Affected products
3Patches
Vulnerability mechanics
References
4- github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.mdnvdExploitThird Party Advisory
- www.exploit-db.com/exploits/51126nvdExploitThird Party Advisory
- www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-seh-overflownvdThird Party Advisory
- web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messenger-Basic-Edition.htmlnvdProduct
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