Vulnerability in Oracle Database Server RDBMS Component Affects Multiple Versions
CVE-2026-73964

2.7LOW

Key Information:

Vendor

Oracle
Status
Oracle Database Server
Vendor
CVE Published:
20 October 2026

What is CVE-2026-73964?

A vulnerability has been identified in the RDBMS component of Oracle Database Server, affecting specific versions between 19.3-19.32 and 21.3-21.23. This weakness allows an attacker with Query Optimizer privileges and network access via Oracle Net to successfully exploit the issue, thereby gaining unauthorized read access to certain data within the RDBMS. Such vulnerabilities can severely compromise data confidentiality, making prompt attention essential.

Affected Version(s)

Oracle Database Server 19.3 <= 19.32

Oracle Database Server 21.3 <= 21.23

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
2.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.