CVE-2026-83220

Received Received - Intake

Siebel CRM Integration Unauthorized Data Access Vulnerability

Publication date: 2026-09-15

Last updated on: 2026-09-18

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Event Publish and Subscribe). Supported versions that are affected are 23.6-26.7. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Integration executes to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-18

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83220

EUVD

EUVD-2026-79572

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm_integration	From 23.6 (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 is a vulnerability in Oracle Siebel CRM Integration affecting versions 23.6 to 26.7. It allows an unauthenticated attacker with access to the physical network segment where the software runs to exploit it. The flaw enables unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to all accessible data in the Siebel CRM Integration system.

Detection Guidance

This vulnerability requires network-level detection since it involves physical communication segment access. Monitor network traffic for unauthorized interactions with the Siebel CRM Integration component. Check for unusual data creation, deletion, or modification requests targeting critical data. Use network sniffing tools like Wireshark to inspect traffic on the segment where Siebel CRM Integration operates.

Impact Analysis

If you use Oracle Siebel CRM Integration versions 23.6 to 26.7, an attacker could gain unauthorized access to your system. This could lead to data breaches, loss or corruption of critical data, and potential exposure of sensitive information. The impact includes both confidentiality and integrity violations.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, and other regulations due to unauthorized data access or modification. It risks exposing personal or sensitive data, which may result in legal penalties, loss of trust, and reputational damage for organizations handling regulated data.

Mitigation Strategies

Apply the latest Oracle Siebel CRM Integration patches or updates as soon as possible to address the vulnerability in versions 23.6-26.7.

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