CVE-2025-32433

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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."}, {"lang": "es", "value": "Erlang/OTP es un conjunto de librer\u00edas para el lenguaje de programaci\u00f3n Erlang. En versiones anteriores a OTP-27.3.3, OTP-26.2.5.11 y OTP-25.3.2.20, un servidor SSH pod\u00eda permitir a un atacante realizar una ejecuci\u00f3n remota de c\u00f3digo (RCE) sin autenticaci\u00f3n. Al explotar una falla en la gesti\u00f3n de mensajes del protocolo SSH, un atacante podr\u00eda obtener acceso no autorizado a los sistemas afectados y ejecutar comandos arbitrarios sin credenciales v\u00e1lidas. Este problema est\u00e1 corregido en las versiones OTP-27.3.3, OTP-26.2.5.11 y OTP-25.3.2.20. Una soluci\u00f3n temporal consiste en deshabilitar el servidor SSH o impedir el acceso mediante reglas de firewall."}], "id": "CVE-2025-32433", "lastModified": "2026-06-17T09:11:59.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-32433", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-08-20T03:55:59.410447Z", "version": "2.0.3"}}]}, "published": "2025-04-16T22:15:14.373", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2025/04/16/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2025/04/18/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2025/04/18/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2025/04/18/6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2025/04/19/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20250425-0001/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit"], "url": "https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Third Party Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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