Erlang/OTP SSH Vulnerable to Pre-Authentication RCE (erlang otp)
At a glance
- Source
- NVD
- EPSS
- EPSS 98.92 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-306 — Missing Authentication for Critical Functionality
References
- https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
- https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
- http://www.openwall.com/lists/oss-security/2025/04/16/2
- http://www.openwall.com/lists/oss-security/2025/04/18/1
- http://www.openwall.com/lists/oss-security/2025/04/18/2
- http://www.openwall.com/lists/oss-security/2025/04/18/6
- http://www.openwall.com/lists/oss-security/2025/04/19/1
- https://security.netapp.com/advisory/ntap-20250425-0001/
- https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html
- https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-11793
- GCVE · GCVE-0-2025-32433
CERT-FR advisories
- CERTFR-2026-AVI-0101 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0360 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*< 25.3.2.20cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*≥ 26.0 < 26.2.5.11cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*≥ 27.0 < 27.3.3cpe:2.3:a:cisco:confd_basic:*:*:*:*:*:*:*:*< 7.7.19.1cpe:2.3:a:cisco:confd_basic:*:*:*:*:*:*:*:*≥ 8.0.18 < 8.1.16.2cpe:2.3:a:cisco:confd_basic:*:*:*:*:*:*:*:*≥ 8.2 < 8.2.11.1cpe:2.3:a:cisco:confd_basic:*:*:*:*:*:*:*:*≥ 8.3 < 8.3.8.1cpe:2.3:a:cisco:confd_basic:*:*:*:*:*:*:*:*≥ 8.4 < 8.4.4.1cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*< 5.7.19.1cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*≥ 5.8 < 6.1.16.2cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*≥ 6.2 < 6.2.11.1cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*≥ 6.3 < 6.3.8.1cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*≥ 6.4 < 6.4.1.1cpe:2.3:a:cisco:network_services_orchestrator:*:*:*:*:*:*:*:*≥ 6.4.2 < 6.4.4.1cpe:2.3:a:cisco:cloud_native_broadband_network_gateway:*:*:*:*:*:*:*:*< 2025.03.1cpe:2.3:a:cisco:inode_manager:-:*:*:*:*:*:*:*cpe:2.3:a:cisco:smart_phy:*:*:*:*:*:*:*:*< 25.2cpe:2.3:a:cisco:ultra_packet_core:*:*:*:*:*:*:*:*< 2025.03cpe:2.3:a:cisco:ultra_services_platform:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*< 2025.03cpe:2.3:a:cisco:optical_site_manager:*:*:*:*:*:*:*:*< 25.2.1cpe:2.3:o:cisco:ncs_2000_shelf_virtualization_orchestrator_firmware:*:*:*:*:*:*:*:*< 25.1.1cpe:2.3:a:cisco:enterprise_nfv_infrastructure_software:*:*:*:*:*:*:*:*< 4.18cpe:2.3:a:cisco:ultra_cloud_core:*:*:*:*:*:*:*:*< 2025.03.1cpe:2.3:o:cisco:rv160w_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv260_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv160_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv260p_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv260w_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv340_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv340w_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv345_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:rv345p_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| erlang · otp | affected >= OTP-27.0-rc1, < OTP-27.3.3 ; affected >= OTP-26.0-rc1, < OTP-26.2.5.11 ; affected < OTP-25.3.2.20 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |