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CVE-2026-83271

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 中的 RDBMS 组件存在漏洞。 受影响的受支持版本包括 19.3-19.32、21.3-21.23 以及 23.4.0-23.26.3。该漏洞易于利用，拥有低权限的攻击者若具备 权限，并通过 Oracle Net 具有网络访问能力，即可利用此漏洞攻击 RDBMS。 成功利用该漏洞可能导致 RDBMS 被接管（即攻击者获得对 RDBMS 的控制权）。 CVSS 3.1 基础评分为 8.8，涉及机密性、完整性和可用性的影响。 CVSS 向量： 术语说明（供参考）： AV:

CVSS 8.8 · High EPSS 0.42% · P33

Affected Version Matrix 3

VendorProduct Version RangeStatus
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-2026-83271

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Oracle Corporation Oracle Database Server 19.3 ~ 19.32 -

II. Public POCs for CVE-2026-83271

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III. Intelligence Information for CVE-2026-83271

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Vendor Advisories for CVE-2026-83271 (1)

Same Patch Batch · Oracle Corporation · 2026-09-15 · 634 CVEs total

CVE-2026-87230 10.0 CRITICAL Oracle Hyperion Financial Management 11.2.26.0.000 远程未授权访问漏洞
CVE-2026-83059 10.0 CRITICAL Oracle Internet Directory 12.2.1.4.0 未授权LDAP攻击
CVE-2026-83099 10.0 CRITICAL Oracle Forms 授权问题漏洞
CVE-2026-83021 10.0 CRITICAL WebLogic 12.2.1.4/14.1远程代码执行漏洞
CVE-2026-71133 10.0 CRITICAL Oracle Access Manager 授权问题漏洞
CVE-2026-83020 10.0 CRITICAL Oracle Fusion Middleware 12.2.1.4.0 远程代码执行漏洞
CVE-2026-87172 9.9 CRITICAL Oracle Hyperion FMI 11.2.26.0.000 远程接管漏洞
CVE-2026-83057 9.9 CRITICAL Oracle Internet Directory 12.2.1.4.0远程代码执行
CVE-2026-73948 9.9 CRITICAL Oracle WebCenter Portal 安全漏洞
CVE-2026-83058 9.9 CRITICAL Oracle Internet Directory 12.2.1.4.0 远程代码执行漏洞
CVE-2026-73945 9.9 CRITICAL Oracle Access Manager 安全漏洞
CVE-2026-83055 9.9 CRITICAL Oracle Internet Directory 12.2.1.4.0 远程接管漏洞
CVE-2026-83056 9.9 CRITICAL Oracle Internet Directory 12.2.1.4.0/14.1.2.1.0 高危RCE
CVE-2026-83038 9.9 CRITICAL WebLogic Server 多个版本远程代码执行漏洞
CVE-2026-83282 9.9 CRITICAL Oracle BI 12.2.1.4远程代码执行漏洞
CVE-2026-82999 9.9 CRITICAL Oracle Fusion Middleware 12.2.1.4.0 远程接管漏洞
CVE-2026-82998 9.9 CRITICAL Oracle Fusion Middleware 12.2/14.1远程代码执行漏洞
CVE-2026-83039 9.9 CRITICAL Oracle WebCenter Portal 12.2.1.4/14.1.2.0 远程接管
CVE-2026-71163 9.9 CRITICAL Oracle Access Manager 安全漏洞
CVE-2026-83031 9.9 CRITICAL Oracle WebCenter Sites 12.2.1.4及14.1.2.0远程接管漏洞

Showing top 20 of 634 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Oracle Database Server
Same vendor: Oracle Corporation

V. Comments for CVE-2026-83271

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