CVSS 3.1
10.0 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HCVE-2025-32433
Critical (10.0) in Erlang Erlang/OTP. In CISA KEV since 2025-06-09. EPSS 99% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 99% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2025-06-09, due 2025-06-30
- CWE
- CWE-306
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cisco:cloud_native_broadband_network_gateway
- cisco:confd_basic
- cisco:enterprise_nfv_infrastructure_software
- cisco:inode_manager
- cisco:ncs_2000_shelf_virtualization_orchestrator_firmware
- cisco:network_services_orchestrator
- cisco:optical_site_manager
- cisco:rv160_firmware
- cisco:rv160w_firmware
- cisco:rv260_firmware
- cisco:rv260p_firmware
- cisco:rv260w_firmware
- cisco:rv340_firmware
- cisco:rv340w_firmware
- cisco:rv345_firmware
- cisco:rv345p_firmware
- cisco:smart_phy
- cisco:staros
- cisco:ultra_cloud_core
- cisco:ultra_packet_core
- cisco:ultra_services_platform
- debian:debian_linux
- erlang:erlang\/otp
References
- https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
- https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
- http://www.openwall.com/lists/oss-security/2025/04/16/2