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

> CVE-2025-32433: Erlang/OTP SSH Vulnerable to Pre-Authentication RCE. CVSS 10.0 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-32433
Last updated: 2026-06-17T09:11:59Z

- Published: 2025-04-16 21:34 UTC · Updated: 2026-06-17 09:11 UTC · Assigner: GitHub\_M
- CVSS: 10.0 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS: 98.9%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-06-09, federal due date 2025-06-30, ransomware use: Unknown
- CWE: CWE-306

## 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.

## CISA 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.

## Affected vendors and products

- erlang: otp

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-32433)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-32433)
- [https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12](https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12)
- [https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f](https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f)
- [https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891](https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891)
- [https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2](https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2025-32433 · Markdown: https://rewindex.com/cve/CVE-2025-32433.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-32433 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:20.614Z