rewindex

RewindexCVEs

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

Critical · CVSS 10.0 (CVSS 3.1)KEV known exploitedEPSS 98.9%, 100th percentilePublished Updated Assigner: GitHub_M

In CISA’s Known Exploited Vulnerabilities catalog: Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerability.

Added , federal remediation due . Known ransomware use: Unknown.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · CWE-306

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

erlang: otp

References

All CVEsMarkdownJSON