{"id":"CVE-2025-32433","aliases":["GHSA-37cp-fgq5-7wc2"],"url":"https://o3.security/vulnerability/CVE-2025-32433","summary":"Erlang/OTP SSH Vulnerable to Pre-Authentication RCE","details":"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.","published":"2025-04-16T21:34:37.457Z","modified":"2026-08-12T03:51:34.804615933Z","cvss":{"score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"epss":{"score":0.98594,"percentile":0.99919,"asOf":"2026-08-26"},"cisaKev":{"dateAdded":"2025-06-09","dueDate":"2025-06-30","knownRansomwareCampaignUse":false},"exploitsKnown":12,"affectedPackages":[],"fix":{"url":"https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12","label":"erlang/otp@0fcd9c5"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/04/16/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/04/18/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/04/18/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/04/18/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/04/19/1"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32433.json"},{"type":"ADVISORY","url":"https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32433"},{"type":"ADVISORY","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20250425-0001/"},{"type":"FIX","url":"https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12"},{"type":"FIX","url":"https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f"},{"type":"FIX","url":"https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891"},{"type":"EVIDENCE","url":"https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py"}],"provenance":{"sources":["OSV.dev","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:34.804615933Z"}}