CVE-2020-2527: Oracle Database Server

Medium severity, CVSS 4.1. EPSS: 1% chance of exploitation in the next 30 days.

Vulnerability in the Core RDBMS component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having Create Index, Create Table privilege with network access via OracleNet to compromise Core RDBMS. While the vulnerability is in Core RDBMS, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Core RDBMS accessible data. CVSS 3.0 Base Score 4.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N).

Affected products

• Oracle Database Server: version 12.1.0.2 only; version 12.2.0.1 only; version 18c only; version 19c only

Published 2020-01-15. Last modified 2026-06-17.