---
title: "CVE-2026-91499: Oracle Database Server - Remote Code Execution"
description: "Oracle Database Server 23.4.0-23.26.3 contains a remote code execution caused by vulnerability in RDBMS component, letting low privileged attackers with DBMS_VECTOR privilege takeover the RDBMS via Oracle Net, exploit requires network access and DBMS_VECTOR privilege."
url: https://panop.io/threat-heartbeat/CVE-2026-91499/
---

# CVE-2026-91499 Oracle Database Server - Remote Code Execution

Oracle Database Server 23.4.0-23.26.3 contains a remote code execution caused by vulnerability in RDBMS component, letting low privileged attackers with DBMS\_VECTOR privilege takeover the RDBMS via Oracle Net, exploit requires network access and DBMS\_VECTOR privilege.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-91499)

## 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

20 October 2026

Updated

21 October 2026

## 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-2026-91499](https://nvd.nist.gov/vuln/detail/CVE-2026-91499)
- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

[← All CVEs](https://panop.io/threat-heartbeat/)

## 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.

[Book a demo](https://panop.io/demo)