CVE-2025-32433 PoC — Erlang/OTP SSH Vulnerable to Pre-Authentication RCE

Source

https://github.com/ProDefense/CVE-2025-32433

Associated Vulnerability

Title: Erlang/OTP SSH Vulnerable to Pre-Authentication RCE (CVE-2025-32433)
Description:Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.3, OTP-26.2.5.11, and OTP-25.3.2.20, a SSH server may allow an attacker to perform unauthenticated remote code execution (RCE). By exploiting a flaw in SSH protocol message handling, a malicious actor could gain unauthorized access to affected systems and execute arbitrary commands without valid credentials. This issue is patched in versions OTP-27.3.3, OTP-26.2.5.11, and OTP-25.3.2.20. A temporary workaround involves disabling the SSH server or to prevent access via firewall rules.

Description

CVE-2025-32433 https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2

Readme

# Working PoC for CVE-2025-32433

![carbon](https://github.com/user-attachments/assets/a69e764a-35c5-4238-b9ed-22326c0b09f8)




Blog post: https://platformsecurity.com/blog/CVE-2025-32433-poc

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