SB2025041757 - Remote code execution in Erlang/OTP SSH server
Published: April 17, 2025 Updated: January 4, 2026
Security Bulletin ID
SB2025041757
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2025-32433)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to missing authentication in Erlang/OTP SSH server. A remote non-authenticated attacker can send specially crafted messages to the server and execute arbitrary code on the system.
Remediation
Install update from vendor's website.
References
- http://www.openwall.com/lists/oss-security/2025/04/16/2
- https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
- https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2