CVE-2026-28390

{"id": "CVE-2026-28390", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28390", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-10T20:24:15.925981Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "openssl-security@openssl.org", "affectedData": [{"vendor": "OpenSSL", "product": "OpenSSL", "versions": [{"status": "affected", "version": "3.6.0", "lessThan": "3.6.2", "versionType": "semver"}, {"status": "affected", "version": "3.5.0", "lessThan": "3.5.6", "versionType": "semver"}, {"status": "affected", "version": "3.4.0", "lessThan": "3.4.5", "versionType": "semver"}, {"status": "affected", "version": "3.3.0", "lessThan": "3.3.7", "versionType": "semver"}, {"status": "affected", "version": "3.0.0", "lessThan": "3.0.20", "versionType": "semver"}, {"status": "affected", "version": "1.1.1", "lessThan": "1.1.1zg", "versionType": "custom"}, {"status": "affected", "version": "1.0.2", "lessThan": "1.0.2zp", "versionType": "custom"}], "defaultStatus": "unaffected"}]}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "affectedData": [{"vendor": "Siemens", "product": "SIMATIC CN 4100", "versions": [{"status": "affected", "version": "0", "lessThan": "V5.0", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}]}], "published": "2026-04-07T22:16:21.190", "references": [{"url": "https://github.com/openssl/openssl/commit/01194a8f1941115cd0383bfa91c736dd3993c8bc", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/2e39b7a6993be445fddb9fbce316fa756e0397b6", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/af2a5fecd3e71a29e7568f9c1453dec5cebbaff4", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/ea7b4ea4f9f853521ba34830cbcadc970d2e0788", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/fd2f1a6cf53b9ceeca723a001aa4b825d7c7ee75", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://openssl-library.org/news/secadv/20260407.txt", "tags": ["Vendor Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html", "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html", "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "openssl-security@openssl.org", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "Issue summary: During processing of a crafted CMS EnvelopedData message\nwith KeyTransportRecipientInfo a NULL pointer dereference can happen.\n\nImpact summary: Applications that process attacker-controlled CMS data may\ncrash before authentication or cryptographic operations occur resulting in\nDenial of Service.\n\nWhen a CMS EnvelopedData message that uses KeyTransportRecipientInfo with\nRSA-OAEP encryption is processed, the optional parameters field of\nRSA-OAEP SourceFunc algorithm identifier is examined without checking\nfor its presence. This results in a NULL pointer dereference if the field\nis missing.\n\nApplications and services that call CMS_decrypt() on untrusted input\n(e.g., S/MIME processing or CMS-based protocols) are vulnerable.\n\nThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}, {"lang": "es", "value": "Resumen del problema: Durante el procesamiento de un mensaje CMS EnvelopedData manipulado con KeyTransportRecipientInfo, puede ocurrir una desreferencia de puntero NULL.\n\nResumen del impacto: Las aplicaciones que procesan datos CMS controlados por el atacante pueden fallar antes de que ocurran operaciones de autenticaci\u00f3n o criptogr\u00e1ficas, lo que resulta en denegaci\u00f3n de servicio.\n\nCuando se procesa un mensaje CMS EnvelopedData que utiliza KeyTransportRecipientInfo con cifrado RSA-OAEP, el campo de par\u00e1metros opcionales del identificador de algoritmo RSA-OAEP SourceFunc se examina sin verificar su presencia. Esto resulta en una desreferencia de puntero NULL si el campo falta.\n\nLas aplicaciones y servicios que llaman a CMS_decrypt() con entrada no confiable (por ejemplo, procesamiento S/MIME o protocolos basados en CMS) son vulnerables.\n\nLos m\u00f3dulos FIPS en 3.6, 3.5, 3.4, 3.3 y 3.0 no se ven afectados por este problema, ya que el c\u00f3digo afectado est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL."}], "lastModified": "2026-07-24T23:10:00.563", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE7957CC-80F0-4907-BFB5-AFB6994DDE3C", "versionEndExcluding": "1.0.2zp", "versionStartIncluding": "1.0.2"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "656A0540-5825-498E-A7AB-C14976FEE45D", "versionEndExcluding": "1.1.1zg", "versionStartIncluding": "1.1.1"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B28A8143-89A4-4332-A1F8-A65FB5AA829F", "versionEndExcluding": "3.0.20", "versionStartIncluding": "3.0.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CF303B21-D9BF-461D-B7B0-A3FE1D557A9F", "versionEndExcluding": "3.3.7", "versionStartIncluding": "3.3.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DCCE43D0-8F17-475D-9EE6-842F758A9905", "versionEndExcluding": "3.4.5", "versionStartIncluding": "3.4.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F6BC0271-444D-4597-BF05-DC60034EAA49", "versionEndExcluding": "3.5.6", "versionStartIncluding": "3.5.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A9E621D-29D8-418A-BF37-BED333C14507", "versionEndExcluding": "3.6.2", "versionStartIncluding": "3.6.0"}], "operator": "OR"}]}], "sourceIdentifier": "openssl-security@openssl.org"}