by Kastro CVE-2025-32433
erlang otp — Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
otp>= OTP-27.0-rc1, < OTP-27.3.3–CNA
otp>= OTP-26.0-rc1, < OTP-26.2.5.11–CNA
otp< OTP-25.3.2.20–CNA
Scores by source
GitHub_M (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total