CVE-2026-83221

Deferred Deferred - Pending Action

Siebel CRM Integration SOAP Access Control Flaw

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: EAI). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows low privileged attacker with network access via SOAP 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 as well as unauthorized update, insert or delete access to some of Siebel CRM Integration accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83221

EUVD

EUVD-2026-79573

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm_integration	From 17.0 (inc) to 26.7 (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 vulnerability affects Oracle Siebel CRM Integration versions 17.0 to 26.7. It allows a low-privileged attacker with network access via SOAP to exploit the system. Successful exploitation can lead to unauthorized access to critical data or full access to all accessible data in Siebel CRM Integration. It may also permit unauthorized modifications such as updates, inserts, or deletions to some accessible data.

Detection Guidance

Detection of this vulnerability requires monitoring for unauthorized SOAP access to the Siebel CRM Integration component. Check server logs for unusual SOAP requests from low-privileged accounts. Inspect network traffic for unexpected connections to the affected service on ports typically used by Oracle Siebel CRM.

Impact Analysis

If you use Oracle Siebel CRM Integration versions 17.0 to 26.7, an attacker could gain unauthorized access to sensitive data or manipulate data within the system. This could result in data breaches, loss of confidential information, or unauthorized changes to critical business data.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data access or modifications. It may result in data breaches, exposing sensitive personal or health information, which could lead to legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply the latest security patches from Oracle for Siebel CRM Integration versions 17.0-26.7. Restrict network access to the SOAP interface to trusted sources only. Review and limit user privileges to the minimum required for operations.

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