CVE-2026-91377

Received Received - Intake

Siebel CRM Integration Unauthorized Data Access Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Integration 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

EPSS Scores

Probability:
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Meta Information

Published

2026-10-20

Last Modified

2026-10-20

Generated

2026-10-21

AI Q&A

2026-10-21

EPSS Evaluated

N/A

NVD

CVE-2026-91377

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle	Corporation	Siebel CRM Integration 25.12

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Siebel CRM Integration versions 25.12 to 26.9. It allows an unauthenticated attacker to remotely access the system via HTTP and potentially gain unauthorized access to sensitive data or all accessible data within the Siebel CRM Integration environment.

Impact Analysis

If exploited, this vulnerability could lead to unauthorized access to critical or all accessible data in your Siebel CRM Integration system. This may result in data breaches, loss of confidential information, or further compromise of your IT environment.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected versions may face legal penalties, reputational damage, and loss of customer trust due to potential data exposure.

Mitigation Strategies

Apply the latest security patches from Oracle for Siebel CRM Integration versions 25.12-26.9. Restrict network access to the HTTP interface to trusted sources only. Monitor for unauthorized access attempts or unusual data access patterns.

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