RDBMS Vulnerability in Oracle Database Server Products
CVE-2026-83348

8.8HIGH

Key Information:

Vendor

Oracle
Status
Oracle Database Server
Vendor
CVE Published:
15 September 2026

What is CVE-2026-83348?

A security flaw in the RDBMS component of Oracle Database Server potentially allows an attacker with minimal privilege and network access to compromise the database. By leveraging the Create DB Link privilege, an attacker may execute a successful exploit that could lead to the complete takeover of the database, affecting its confidentiality, integrity, and availability. Affected versions include Oracle Database Server 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. For further information, refer to the Oracle Advisory.

Affected Version(s)

Oracle Database Server 19.3 <= 19.32

Oracle Database Server 21.3 <= 21.23

Oracle Database Server 23.4.0 <= 23.26.3

References

https://www.oracle.com/security-alerts/cspusep2026.html
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.