CVE-2026-91447

Analyzed Analyzed - Analysis Complete

Siebel CRM Deployment Unauthorized Data Access Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

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 unauthenticated attacker with network access via HTTP 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 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91447

EUVD

EUVD-2026-106697

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 17.0 (inc) to 26.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM Deployment (versions 17.0-26.9) that allows an unauthenticated attacker with network access via HTTP to compromise the system. Successful exploitation can lead to unauthorized access to critical data or full access to all accessible data in Siebel CRM Deployment.

Detection Guidance

This vulnerability affects Oracle Siebel CRM Deployment versions 17.0-26.9. Detection requires checking the installed version of Siebel CRM Deployment against the affected range. Use the following command to check the version: grep -r "Siebel CRM Deployment" /path/to/installation/directory. If the version falls within 17.0 to 26.9, the system is vulnerable.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive data stored in the Siebel CRM system, potentially leading to data breaches, loss of confidential information, or further system compromise depending on the exposed data.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate compliance requirements under GDPR (data protection) or HIPAA (health information privacy), potentially resulting in legal penalties, fines, or reputational damage due to non-compliance.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches immediately as they address this vulnerability. Ensure network access controls restrict HTTP access to the Siebel CRM Deployment component. Monitor for unauthorized access attempts or unusual data access patterns.

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