CVE-2025-32433
CRITICAL CISA KEV EPSS 99.9%
Published Apr 16, 20251y ago · Modified Jun 17, 20261w ago
10.0 CVSS 3.1
Published Apr 16, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
KEV Listed Jun 9, 2025 1y ago
KEV Due Jun 30, 2025 364d overdue
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High
Threat Intelligence
CISA Known Exploited Overdue 364d
- Added
- Jun 9, 2025
- Due
- Jun 30, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS Exploit Probability
99.9% percentile
Exploit & Patch Status
Actively Exploited (KEV)
Patch Available
Weaknesses 1
CWE-306 Missing Authentication for Critical Function Authentication
Affected Products 47
| Vendor | Product | Version | Range |
|---|---|---|---|
| erlang | erlang\/otp | * | <25.3.2.20 |
| erlang | erlang\/otp | * | ≥26.0 – <26.2.5.11 |
| erlang | erlang\/otp | * | ≥27.0 – <27.3.3 |
| cisco | confd_basic | * | <7.7.19.1 |
| cisco | confd_basic | * | ≥8.0.18 – <8.1.16.2 |
| cisco | confd_basic | * | ≥8.2 – <8.2.11.1 |
| cisco | confd_basic | * | ≥8.3 – <8.3.8.1 |
| cisco | confd_basic | * | ≥8.4 – <8.4.4.1 |
| cisco | network_services_orchestrator | * | <5.7.19.1 |
| cisco | network_services_orchestrator | * | ≥5.8 – <6.1.16.2 |
| cisco | network_services_orchestrator | * | ≥6.2 – <6.2.11.1 |
| cisco | network_services_orchestrator | * | ≥6.3 – <6.3.8.1 |
| cisco | network_services_orchestrator | * | ≥6.4 – <6.4.1.1 |
| cisco | network_services_orchestrator | * | ≥6.4.2 – <6.4.4.1 |
| cisco | cloud_native_broadband_network_gateway | * | <2025.03.1 |
| cisco | inode_manager | * | any |
| cisco | smart_phy | * | <25.2 |
| cisco | ultra_packet_core | * | <2025.03 |
| cisco | ultra_services_platform | * | any |
| cisco | staros | * | <2025.03 |
| cisco | optical_site_manager | * | <25.2.1 |
| cisco | ncs_1001 | * | any |
| cisco | ncs_1002 | * | any |
| cisco | ncs_1004 | * | any |
| cisco | ncs_2000_shelf_virtualization_orchestrator_firmware | * | <25.1.1 |
| cisco | ncs_2000_shelf_virtualization_orchestrator_module | * | any |
| cisco | enterprise_nfv_infrastructure_software | * | <4.18 |
| cisco | ultra_cloud_core | * | <2025.03.1 |
| cisco | rv160w_firmware | * | any |
| cisco | rv160w | * | any |
| cisco | rv260_firmware | * | any |
| cisco | rv260 | * | any |
| cisco | rv160_firmware | * | any |
| cisco | rv160 | * | any |
| cisco | rv260p_firmware | * | any |
| cisco | rv260p | * | any |
| cisco | rv260w_firmware | * | any |
| cisco | rv260w | * | any |
| cisco | rv340_firmware | * | any |
| cisco | rv340 | * | any |
| cisco | rv340w_firmware | * | any |
| cisco | rv340w | * | any |
| cisco | rv345_firmware | * | any |
| cisco | rv345 | * | any |
| cisco | rv345p_firmware | * | any |
| cisco | rv345p | * | any |
| debian | debian_linux | 11.0 | any |
References 14
- openwall.com http://www.openwall.com/lists/oss-security/2025/04/16/2
- openwall.com http://www.openwall.com/lists/oss-security/2025/04/18/1
- openwall.com http://www.openwall.com/lists/oss-security/2025/04/18/2
- openwall.com http://www.openwall.com/lists/oss-security/2025/04/18/6
- openwall.com http://www.openwall.com/lists/oss-security/2025/04/19/1
- github.com https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py
- github.com https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- github.com https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- github.com https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
- github.com https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
- lists.debian.org https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html
- sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy
- security.netapp.com https://security.netapp.com/advisory/ntap-20250425-0001/
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433
Remediation
- github.com https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
- github.com https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
- github.com https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891