---
id: CVE-2026-73964
title: Vulnerability in the RDBMS component of Oracle Database Server
summary: >-
  Vulnerability in the RDBMS component of Oracle Database Server.  Supported
  versions that are affected are 19.3-19.32 and  21.3-21.23. Easily exploitable
  vulnerability allows high privileged attacker having Query Optimizer privilege
  with …
severity: low
cvss: 2.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Database Server
affected:
  - oracle_database_server >= 19.3 <= 19.32
  - oracle_database_server >= 21.3 <= 21.23
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:23:31.642Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-73964'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.893Z'
---

## Overview

Vulnerability in the RDBMS component of Oracle Database Server.  Supported versions that are affected are 19.3-19.32 and  21.3-21.23. Easily exploitable vulnerability allows high privileged attacker having Query Optimizer privilege with network access via Oracle Net to compromise RDBMS.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of RDBMS accessible data. CVSS 3.1 Base Score 2.7 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).

## Affected

- `oracle_database_server >= 19.3 <= 19.32`
- `oracle_database_server >= 21.3 <= 21.23`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.