CVE-2026-83348 Oracle Database Server - Remote Code Execution

Oracle Database Server 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3 contain a remote code execution caused by improper privilege validation in RDBMS component, letting low privileged attackers with Create DB Link privilege takeover the RDBMS, exploit requires network access via Oracle Net.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.42% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-269

Vendor fix

Update to the latest available Oracle Database Server version beyond 23.26.3.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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