CVE-2025-50066: 
Oracle Database Server vulnerability analysis and mitigation

A vulnerability has been identified in the Oracle Database Materialized View component of Oracle Database Server, tracked as CVE-2025-50066. The affected versions include Oracle Database Server versions 19.3-19.27, 21.3-21.18, and 23.4-23.8. This vulnerability was discovered by Emad Al-Mousa and was publicly disclosed on July 15, 2025 (Oracle Patch, NVD).

The vulnerability requires a high-privileged attacker with Execute on DBMS_REDEFINITION privilege and network access via Oracle Net to potentially compromise Oracle Database Materialized View. The vulnerability has been assigned a CVSS 3.1 Base Score of 2.7 (Low severity) with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N. This indicates network attack vector, low attack complexity, high privileges required, no user interaction needed, unchanged scope, and potential impact only on integrity (NVD).

Successful exploitation of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Database Materialized View accessible data. The impact is primarily limited to data integrity, with no direct effect on confidentiality or availability (Oracle Patch).

Oracle has released patches to address this vulnerability as part of the July 2025 Critical Patch Update. Organizations are strongly recommended to apply these security patches as soon as possible to affected Oracle Database Server versions (Oracle Patch).