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CVE-2026-71063

Oracle Database Server · Vulnerability

CVSS 3.1 9.6 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-71063

Published

Vulnerability in the Portable Clusterware 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 unauthenticated attacker with access to the physical communication segment attached to the hardware where the Portable Clusterware executes to compromise Portable Clusterware. While the vulnerability is in Portable Clusterware, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Portable Clusterware. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-71063

Published

Oracle Database Server

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "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"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON