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CVE-2026-83271: 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. in Oracle Corporation Oracle Database Server

0
High
VulnerabilityCVE-2026-83271cvecve-2026-83271
Published: 09/15/2026 (09/15/2026, 20:04:41 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Oracle Database Server

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).

CVSS v3.1

Score 8.8high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Oracle Corporation

Oracle Database Server

Affected versions
>=19.3 <=19.32>=21.3 <=21.23>=23.4.0 <=23.26.3

Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-31T15:40:57.350Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]

Threat ID: 6aa9a83755bf5e2cf553812a

Added to database: 09/15/2026, 20:19:03 UTC

Last updated: 09/15/2026, 20:31:46 UTC

Views: 2

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