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Severity by source

GitHub Advisory PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SUSE
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Mar 28, 2026 - 18:37 vuln.today
Patch released
Mar 28, 2026 - 18:37 nvd
Patch available
Added to CISA KEV
Nov 04, 2025 - 14:49 cisa
CISA KEV
PoC Detected
Nov 04, 2025 - 14:49 vuln.today
Public exploit code
CVE Published
Apr 16, 2025 - 22:15 nvd
CRITICAL 10.0

DescriptionGitHub Advisory

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.

AnalysisAI

Erlang/OTP SSH server allows unauthenticated remote code execution by exploiting a flaw in SSH protocol message handling, enabling unauthorized system access with CVSS 10.0.

Technical ContextAI

The CWE-306 flaw in SSH protocol message handling allows an attacker to send SSH messages before authentication completes. The SSH server processes these pre-auth messages in a way that enables arbitrary Erlang code execution, which translates to OS command execution.

RemediationAI

Update Erlang/OTP immediately. Identify all services using Erlang SSH (RabbitMQ, CouchDB, ejabberd, etc.). Restrict SSH port access. Monitor for exploitation attempts.

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Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Enterprise Storage 7.1 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed

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CVE-2025-32433 vulnerability details – vuln.today

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