CVE-2026-21945

{"id": "CVE-2026-21945", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21945", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-21T15:04:39.899042Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert_us@oracle.com", "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": "secalert_us@oracle.com", "affectedData": [{"vendor": "Oracle Corporation", "product": "Oracle Java SE", "versions": [{"status": "affected", "version": "8u471"}, {"status": "affected", "version": "8u471-b50"}, {"status": "affected", "version": "8u471-perf"}, {"status": "affected", "version": "11.0.29"}, {"status": "affected", "version": "17.0.17"}, {"status": "affected", "version": "21.0.9"}, {"status": "affected", "version": "25.0.1"}]}, {"vendor": "Oracle Corporation", "product": "Oracle GraalVM for JDK", "versions": [{"status": "affected", "version": "17.0.17"}, {"status": "affected", "version": "21.0.9"}]}, {"vendor": "Oracle Corporation", "product": "Oracle GraalVM Enterprise Edition", "versions": [{"status": "affected", "version": "21.3.16"}]}]}, {"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"}]}], "published": "2026-01-20T22:15:57.390", "references": [{"url": "https://www.oracle.com/security-alerts/cpujan2026.html", "tags": ["Vendor Advisory"], "source": "secalert_us@oracle.com"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html", "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u471, 8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9; Oracle GraalVM Enterprise Edition: 21.3.16. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."}, {"lang": "es", "value": "Vulnerabilidad en el producto Oracle Java SE, Oracle GraalVM para JDK, Oracle GraalVM Enterprise Edition de Oracle Java SE (componente: Seguridad). Las versiones compatibles afectadas son Oracle Java SE: 8u471, 8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM para JDK: 17.0.17 y 21.0.9; Oracle GraalVM Enterprise Edition: 21.3.16. La vulnerabilidad f\u00e1cilmente explotable permite a un atacante no autenticado con acceso a la red a trav\u00e9s de m\u00faltiples protocolos comprometer Oracle Java SE, Oracle GraalVM para JDK, Oracle GraalVM Enterprise Edition. Los ataques exitosos de esta vulnerabilidad pueden resultar en la capacidad no autorizada de causar un bloqueo o una ca\u00edda (crash) frecuentemente repetible (DoS completo) de Oracle Java SE, Oracle GraalVM para JDK, Oracle GraalVM Enterprise Edition. Nota: Esta vulnerabilidad se aplica a implementaciones de Java, t\u00edpicamente en clientes que ejecutan aplicaciones Java Web Start en sandbox o applets Java en sandbox, que cargan y ejecutan c\u00f3digo no confiable (por ejemplo, c\u00f3digo que proviene de internet) y dependen del sandbox de Java para la seguridad. Esta vulnerabilidad no se aplica a implementaciones de Java, t\u00edpicamente en servidores, que cargan y ejecutan solo c\u00f3digo confiable (por ejemplo, c\u00f3digo instalado por un administrador). Puntuaci\u00f3n base CVSS 3.1 7.5 (Impactos en la disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."}], "lastModified": "2026-06-17T10:19:13.000", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oracle:graalvm:21.3.16:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "625D4829-2E57-4C05-BEFE-CE30F6D16E9B"}, {"criteria": "cpe:2.3:a:oracle:graalvm_for_jdk:17.0.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF0F6A0B-89BB-4851-9DF7-2A6C139DAF47"}, {"criteria": "cpe:2.3:a:oracle:graalvm_for_jdk:21.0.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FB4F8E6F-3B7D-49D8-8619-63B23F244AF4"}, {"criteria": "cpe:2.3:a:oracle:jdk:1.8.0:update471:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "2905151E-7D6C-4E7C-A371-941EABBF6CC7"}, {"criteria": "cpe:2.3:a:oracle:jdk:1.8.0:update471:*:*:enterprise_performance_pack:*:*:*", "vulnerable": true, "matchCriteriaId": "A77BE683-07F2-4A1E-8B62-E104B4866DC3"}, {"criteria": "cpe:2.3:a:oracle:jdk:1.8.0:update471_b50:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "3605CFE2-513B-4384-9617-6F4A86DFCEF3"}, {"criteria": "cpe:2.3:a:oracle:jdk:11.0.29:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58D9D6AA-C17D-49FF-93B6-444FEC757A58"}, {"criteria": "cpe:2.3:a:oracle:jdk:17.0.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D86D044A-6780-4DD9-85D1-B1EC64ACBF4E"}, {"criteria": "cpe:2.3:a:oracle:jdk:21.0.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB7B1B52-5FE9-444B-8BD4-6CA4B2B8E78B"}, {"criteria": "cpe:2.3:a:oracle:jdk:25.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD1D0136-84A2-4EAD-9641-7E96E4386CAA"}, {"criteria": "cpe:2.3:a:oracle:jre:1.8.0:update471:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "FA31F595-0796-4BED-BD29-8C55BBE3792C"}, {"criteria": "cpe:2.3:a:oracle:jre:1.8.0:update471:*:*:enterprise_performance_pack:*:*:*", "vulnerable": true, "matchCriteriaId": "AC169A27-61AD-42C8-9127-7B8A8622450D"}, {"criteria": "cpe:2.3:a:oracle:jre:1.8.0:update471_b50:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "8EB89776-DD1C-4117-BC7E-B263B6AA9853"}, {"criteria": "cpe:2.3:a:oracle:jre:11.0.29:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF7696E8-6F94-425E-A62D-D800ED6715D1"}, {"criteria": "cpe:2.3:a:oracle:jre:17.0.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E3951FD6-E2A7-497A-97AF-976878B512CB"}, {"criteria": "cpe:2.3:a:oracle:jre:21.0.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB701439-8B86-41F3-A77E-53C340FF1CB6"}, {"criteria": "cpe:2.3:a:oracle:jre:25.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "70279FE8-6A11-405B-80CA-B3427C11B35D"}], "operator": "OR"}]}], "sourceIdentifier": "secalert_us@oracle.com"}