SEPTEMBER 17, 2026
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Case File

CVE-2026-71063

CRITICAL · CVSS 9.6 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-18 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A critical vulnerability exists in the Portable Clusterware component of Oracle Database Server, affecting versions 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. This easily exploitable flaw allows unauthenticated attackers with physical access to the communication segment to take control of Portable Clusterware, potentially compromising the confidentiality, integrity, and availability of additional connected products. Organizations using the affected Oracle Database versions should prioritize immediate remediation to mitigate the risk of significant operational disruption.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-71063
Severity
CRITICAL
CVSS
9.6
EPSS
0.34%
Oracle

Original NVD 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).

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