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Vulnerability record · CVE-2020-2734 · published 15 April 2020

CVE-2020-2734: Oracle database server vulnerability

Oracle · Database Server

Vulnerability in the RDBMS/Optimizer 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 Execute on DBMS_SQLTUNE privilege with network access via Oracle Net to compromise RDBMS/Optimizer. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS/Optimizer accessible data. CVSS 3.0 Base Score 2.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N).

2.4 CVSS 3.1 Low EPSS 0.89% · top 42.0%
2.4CVSS 3.1 base score, v2 3.5
0.89%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Vulnerability in the RDBMS/Optimizer 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 Execute on DBMS_SQLTUNE privilege with network access via Oracle Net to compromise RDBMS/Optimizer. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS/Optimizer accessible data. CVSS 3.0 Base Score 2.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N).

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.oracle.com/security-alerts/cpuapr2020.html Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-2734), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.