---
title: "CVE-2026-83088: Oracle Database Server - Denial of Service"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-83088/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83088)

## 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](https://cwe.mitre.org/data/definitions/284.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-83088](https://nvd.nist.gov/vuln/detail/CVE-2026-83088)
- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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