---
id: CVE-2026-91436
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. Difficult to exploit vulnerability allows high privileged attacker
  with logo…
severity: low
cvss: 3.9
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L'
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: '2026-10-20T21:25:57.579Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91436'
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. Difficult to exploit vulnerability allows high 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 update, insert or delete access to some of Siebel CRM Deployment accessible data as well as  unauthorized read access to a subset of Siebel CRM Deployment accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 3.9 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L).

## Affected

- `siebel_crm_deployment >= 17.0 <= 26.9`

## Remediation

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