Oracle DB 23.4-23.9: RDBMS Functional Index Privilege Data Leak
CVE-2025-53051 Published on October 21, 2025
Vulnerability in the RDBMS Functional Index component of Oracle Database Server. Supported versions that are affected are 23.4-23.9. Easily exploitable vulnerability allows high privileged attacker having SYSDBA privilege with network access via Oracle Net to compromise RDBMS Functional Index. Successful attacks of this vulnerability can result in unauthorized read access to a subset of RDBMS Functional Index 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).
Vulnerability Analysis
CVE-2025-53051 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2025-53051
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Affected Versions
Oracle Corporation Oracle Database Server:- Version 23.4, <= 23.9 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.