CVE-2026-21930

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{"affected": [{"affectedData": [{"product": "Oracle ZFS Storage Appliance Kit", "vendor": "Oracle Corporation", "versions": [{"status": "affected", "version": "8.8", "versionType": "semver"}]}], "source": "secalert_us@oracle.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit:8.8.0:*:*:*:*:*:*:*", "matchCriteriaId": "556648E8-64A4-451F-9C10-22A829892C5E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Filesystems). The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle ZFS Storage Appliance Kit executes to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle ZFS Storage Appliance Kit accessible data. CVSS 3.1 Base Score 2.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N)."}, {"lang": "es", "value": "Vulnerabilidad en el producto Oracle ZFS Storage Appliance Kit de Oracle Systems (componente: Filesystems). La versi\u00f3n compatible que est\u00e1 afectada es la 8.8. vulnerabilidad f\u00e1cilmente explotable permite a un atacante con altos privilegios con inicio de sesi\u00f3n en la infraestructura donde se ejecuta Oracle ZFS Storage Appliance Kit comprometer Oracle ZFS Storage Appliance Kit. Ataques exitosos de esta vulnerabilidad pueden resultar en acceso no autorizado de actualizaci\u00f3n, inserci\u00f3n o eliminaci\u00f3n a algunos de los datos accesibles de Oracle ZFS Storage Appliance Kit. Puntuaci\u00f3n Base CVSS 3.1 de 2.3 (Impactos en la integridad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N)."}], "id": "CVE-2026-21930", "lastModified": "2026-06-17T10:19:11.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 2.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 1.4, "source": "secalert_us@oracle.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21930", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-21T20:54:07.559302Z", "version": "2.0.3"}}]}, "published": "2026-01-20T22:15:55.530", "references": [{"source": "secalert_us@oracle.com", "tags": ["Vendor Advisory"], "url": "https://www.oracle.com/security-alerts/cpujan2026.html"}], "sourceIdentifier": "secalert_us@oracle.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T04:38:08.443013+00:00", "value": {"mitigation_remediation": ["Verify the installed appliance version; if 8.8 is present, apply any vendor\u2011issued patch that resolves the access\u2011control flaw as soon as it becomes available.", "Enforce least\u2011privilege policies on the infrastructure hosting the appliance, restricting local logons to only those user accounts that require administrative access and removing unnecessary high\u2011privileged accounts.", "Implement audit logging for all data\u2011modification operations and monitor the logs for anomalous activity, ensuring early detection of unauthorized update, insert or delete attempts."], "summary": {"action": "Assess Impact", "impact": "Integrity compromise via unauthorized data modification"}, "threat_synthesis": {"affected_systems": "Oracle ZFS Storage Appliance Kit, version 8.8. No information on earlier or later releases is provided.", "description_and_impact": "The issue affects Oracle ZFS Storage Appliance Kit 8.8. A high privileged attacker who can log on to the underlying infrastructure can compromise the appliance and modify data stored on or accessible through it. The vulnerability enables unauthorized update, insert, or delete actions on the data, compromising integrity. It is an improper access control flaw that lets privileged users perform actions beyond what the system normally permits. A successful exploitation leads to integrity damage and potential loss of data consistency.", "risk_and_exploitability": "The vulnerability has a CVSS 3.1 base score of 2.3, indicating low severity primarily affecting integrity. The EPSS score of less than 1% suggests a very low probability of exploitation in the wild. The vulnerability is not included in the CISA KEV catalog, and no known exploitation campaigns exist. The attack vector likely requires local or high\u2011privileged access to the appliance environment; an attacker with such access could directly modify data through the appliance interfaces."}}}}, "created": "2026-04-18T04:45:36.864593+00:00", "title": "Unauthorized Data Modification via Privileged Account in Oracle ZFS Storage Appliance Kit 8.8", "updated": "2026-04-18T04:45:36.864603+00:00", "vendors": [], "weaknesses": ["CWE-284"]}