CVE-2026-71064

Published Aug 18, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Physical Access Exploitation of Oracle Portable Clusterware Leading to Full Clusterware Compromise
Weaknesses CWE-287
Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Physical Access Exploitation of Oracle Portable Clusterware Leading to Full Clusterware Compromise
Weaknesses CWE-287
Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Physical Access Exploitation Compromises Clusterware in Oracle Database
Weaknesses CWE-200
Type Values Removed Values Added
First Time appeared Oracle database Server
Vendors & Products Oracle database Server
Type Values Removed Values Added
Title Physical Access Exploitation Compromises Clusterware in Oracle Database
Weaknesses CWE-200
Type Values Removed Values Added
Title Unauthenticated Clusterware Takeover via Physical Network Access
Weaknesses CWE-284
CWE-285
Type Values Removed Values Added
Title Unauthenticated Clusterware Takeover via Physical Network Access
Weaknesses CWE-284
CWE-285
Type Values Removed Values Added
Description 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).
First Time appeared Oracle
Oracle database - Portable Clusterware
CPEs cpe:2.3:a:oracle:database_-_portable_clusterware:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle database - Portable Clusterware
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Aug 22, 2026, 3:52 AM
Reserved
Aug 4, 2026, 10:06 PM
Status
Modified
Published
Aug 18, 2026, 9:18 PM
Modified
Oct 22, 2026, 5:09 PM