CVE-2025-32433 - Erlang Erlang/OTP

Overview

A source-backed snapshot of this vulnerability.

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.

CISA KEVyesWhether CISA lists this as exploited.

Techniques0AI attack methods connected to this vulnerability.

Case studies0Examples where this vulnerability is mentioned.

Vulnerability status

How serious this vulnerability is and whether it is known to be exploited.

CISA KEVCRITICAL

CVE ID: CVE-2025-32433
Vendor/project: Erlang
Product: Erlang/OTP
Vulnerability name: Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerability
Date added: 2025-06-09
Due date: 2025-06-30
Known ransomware campaign use: Unknown
CVSS v3: 10.0

CWE-306

Exploit context

What the vulnerability is about.

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.

Related AI techniques

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No related AI attack methods. No AI attack method is connected to this vulnerability in the current data.

Related case studies

Examples where this vulnerability is mentioned.

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No related case studies. No case study currently mentions this vulnerability.

Source evidence

Original public records and references for this page.

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Original source

Original source links

Open the public records and source datasets used for this page.

NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2025-32433 CVE API docshttps://nvd.nist.gov/developers/vulnerabilities Data feedshttps://nvd.nist.gov/vuln/data-feeds Cataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalog Data repositoryhttps://github.com/cisagov/kev-data security-advisories@github.comhttps://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12 security-advisories@github.comhttps://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f security-advisories@github.comhttps://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891 security-advisories@github.comhttps://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2 af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/04/16/2 af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/04/18/1 af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/04/18/2 af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/04/18/6 af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/04/19/1 af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250425-0001/134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py