# CVE-2025-32433

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.

- Page: https://www.vulneraibility.com/cve/CVE-2025-32433
- CVSS: 10.0
- Known exploited: yes, in CISA KEV since 2025-06-09; CISA due date 2025-06-30
- EPSS: 98.92%
- Public exploit code: 1 Metasploit module · 41 GitHub proofs of concept (first 2025-04-18)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-08-20)
- Weakness: CWE-306
- Also known as: GHSA-37cp-fgq5-7wc2
- Published: 2025-04-16

## Affected

- erlang:erlang\/otp
- cisco:confd_basic
- cisco:network_services_orchestrator
- cisco:cloud_native_broadband_network_gateway
- cisco:inode_manager
- cisco:smart_phy
- cisco:ultra_packet_core
- cisco:ultra_services_platform
- cisco:staros
- cisco:optical_site_manager
- cisco:ncs_2000_shelf_virtualization_orchestrator_firmware
- cisco:enterprise_nfv_infrastructure_software
- cisco:ultra_cloud_core
- cisco:rv160w_firmware
- cisco:rv260_firmware
- cisco:rv160_firmware
- cisco:rv260p_firmware
- cisco:rv260w_firmware
- cisco:rv340_firmware
- cisco:rv340w_firmware
- cisco:rv345_firmware
- cisco:rv345p_firmware
- debian:debian_linux

## References

- [other] https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
- [other] https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- [other] https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- [other] https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
- [other] http://www.openwall.com/lists/oss-security/2025/04/16/2
- [other] http://www.openwall.com/lists/oss-security/2025/04/18/1
- [other] http://www.openwall.com/lists/oss-security/2025/04/18/2
- [other] http://www.openwall.com/lists/oss-security/2025/04/18/6
- [other] http://www.openwall.com/lists/oss-security/2025/04/19/1
- [other] https://security.netapp.com/advisory/ntap-20250425-0001/
- [other] https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html
- [exploit] https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py
- [advisory] https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.