{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-83271", "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85", "state": "PUBLISHED", "assignerShortName": "oracle", "dateReserved": "2026-08-31T15:40:57.350Z", "datePublished": "2026-09-15T20:04:41.868Z", "dateUpdated": "2026-09-15T20:04:41.868Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "43595867-4340-4103-b7a2-9a5208d29a85", "shortName": "oracle", "dateUpdated": "2026-09-15T20:04:41.868Z"}, "problemTypes": [{"descriptions": [{"lang": "en-US", "description": "Easily exploitable vulnerability allows low privileged attacker having Execute on DBMS_REDEFINITION privilege with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in takeover of RDBMS."}]}], "affected": [{"vendor": "Oracle Corporation", "product": "Oracle Database Server", "versions": [{"version": "19.3", "status": "affected", "lessThanOrEqual": "19.32", "versionType": "custom"}, {"version": "21.3", "status": "affected", "lessThanOrEqual": "21.23", "versionType": "custom"}, {"version": "23.4.0", "status": "affected", "lessThanOrEqual": "23.26.3", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:database_-_rdbms:*:*:*:*:*:*:*:*", "versionStartIncluding": "19.3", "versionEndIncluding": "19.32"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:database_-_rdbms:*:*:*:*:*:*:*:*", "versionStartIncluding": "21.3", "versionEndIncluding": "21.23"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:database_-_rdbms:*:*:*:*:*:*:*:*", "versionStartIncluding": "23.4.0", "versionEndIncluding": "23.26.3"}]}]}], "descriptions": [{"lang": "en-US", "value": "Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having Execute on DBMS_REDEFINITION privilege with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in takeover of RDBMS. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)."}], "references": [{"url": "https://www.oracle.com/security-alerts/cspusep2026.html", "name": "Oracle Advisory", "tags": ["vendor-advisory"]}], "metrics": [{"cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}]}}}

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{"affected": [{"affectedData": [{"product": "Oracle Database Server", "vendor": "Oracle Corporation", "versions": [{"lessThanOrEqual": "19.32", "status": "affected", "version": "19.3", "versionType": "custom"}, {"lessThanOrEqual": "21.23", "status": "affected", "version": "21.3", "versionType": "custom"}, {"lessThanOrEqual": "23.26.3", "status": "affected", "version": "23.4.0", "versionType": "custom"}]}], "source": "secalert_us@oracle.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having Execute on DBMS_REDEFINITION privilege with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in takeover of RDBMS. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)."}], "id": "CVE-2026-83271", "lastModified": "2026-09-15T20:18:39.517", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "secalert_us@oracle.com", "type": "Primary"}]}, "published": "2026-09-15T20:18:39.517", "references": [{"source": "secalert_us@oracle.com", "url": "https://www.oracle.com/security-alerts/cspusep2026.html"}], "sourceIdentifier": "secalert_us@oracle.com", "vulnStatus": "Received"}

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