CVE-2020-2511

HighCVSS 7.7/10Last modified Jun 17, 2026

Description

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 low privileged attacker having Create Session 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Core RDBMS. CVSS 3.0 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected software

VendorProductVersions
Oracle CorporationOracle Database12.1.0.2; 12.2.0.1; 18c; 19c

References

Timeline

Published
Jan 15, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-2511: High severity, CVSS 7.7 | Vulnix