---
id: CVE-2026-91366
title: >-
  Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel
  CRM (component: Siebel Cloud Manager)
summary: >-
  Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel
  CRM (component: Siebel Cloud Manager).  Supported versions that are affected
  are 22.3-26.9. Difficult to exploit vulnerability allows unauthenticated
  attacker wi…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Siebel CRM Cloud Applications
affected:
  - siebel_crm_cloud_applications >= 22.3 <= 26.9
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:25:34.029Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91366'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.785Z'
---

## Overview

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager).  Supported versions that are affected are 22.3-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications.  While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data as well as  unauthorized read access to a subset of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 4.7 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N).

## Affected

- `siebel_crm_cloud_applications >= 22.3 <= 26.9`

## Remediation

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