CVE-2026-83088 Oracle Database Server - Denial of Service

Oracle Database Server 23.4.0-23.26.3 contains a denial of service caused by a vulnerability in the RDBMS component, letting low privileged authenticated users with network access via Oracle Net cause a hang or crash, exploit requires authenticated user privilege.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-284

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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