CVE-2026-71063
Quick assessment
Affected
Oracle Corporation Oracle Database Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Oracle Database Server是美国Oracle公司的一个数据库服务器软件。 Oracle Database Server 19.3版本至19.32版本、21.3版本至21.23版本和23.4.0版本至23.26.3版本存在安全漏洞，该漏洞源于Portable Clusterware组件问题，可能导致未经身份验证的攻击者通过物理通信段访问，从而接管Portable Clusterware。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Oracle Corporation | Oracle Database Server | 19.3≤ 19.32 |
affected |
21.3≤ 21.23 |
affected | ||
23.4.0≤ 23.26.3 |
affected |
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I. Basic Information for CVE-2026-71063
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Oracle Database Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oracle Database Server是美国Oracle公司的一个数据库服务器软件。 Oracle Database Server 19.3版本至19.32版本、21.3版本至21.23版本和23.4.0版本至23.26.3版本存在安全漏洞，该漏洞源于Portable Clusterware组件问题，可能导致未经身份验证的攻击者通过物理通信段访问，从而接管Portable Clusterware。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Oracle Corporation | Oracle Database Server | 19.3 ~ 19.32 | - |
|
II. Public POCs for CVE-2026-71063
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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IV. Related Vulnerabilities
V. Comments for CVE-2026-71063
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