CVE-2026-83351 Oracle Database Server - Remote Code Execution

Oracle Database Server 23.4.0-23.26.3 contains a remote code execution vulnerability in the RDBMS component exploitable via Oracle Net, letting unauthenticated attackers with network access take over the RDBMS, exploit requires high attack complexity.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.37% 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:H/PR:N/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 a version later than 23.26.3 or the latest available version.

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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