CVE-2023-54329

Inbit Messenger 4.9.0 - Unauthenticated Remote Command Execution (RCE)

CVSS 9.3 CRITICALEPSS 1.0%CWE-121

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.3EPSS 1.0%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

13 Jan 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

Inbit Messenger 4.6.0 - 4.9.0 contains a remote command execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by exploiting a stack overflow in the messenger's protocol. Attackers can send specially crafted XML packets to port 10883 with a malicious payload to trigger the vulnerability and execute commands with system privileges.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Inbit · Inbit Messenger

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/51127unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://github.com/a-rey/exploits/blob/main/writeups/Inbit_Messenger/v4.6.0/writeup.md https://web.archive.org/web/20200122082432/https://www.softsea.com/review/Inbit-Messenger-Basic-Edition.html https://www.exploit-db.com/exploits/51127 https://www.vulncheck.com/advisories/inbit-messenger-unauthenticated-remote-command-execution-rce