---
id: CVE-2026-91439
title: >-
  Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM
  (component: Server Infrastructure)
summary: >-
  Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM
  (component: Server Infrastructure).  Supported versions that are affected are
  17.0-26.9. Easily exploitable vulnerability allows low privileged attacker
  with logon t…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Siebel CRM Deployment
affected:
  - siebel_crm_deployment >= 17.0 <= 26.9
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:25:58.601Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91439'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.756Z'
---

## Overview

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure).  Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes to compromise Siebel CRM Deployment.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

## Affected

- `siebel_crm_deployment >= 17.0 <= 26.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.