CVE-2026-101459

Analyzed Analyzed - Analysis Complete

Siebel CRM Deployment Unauthorized Data Access and DoS

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 low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L).

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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-2026-101459

EUVD

EUVD-2026-105875

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-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Siebel CRM Deployment (versions 17.0-26.9) that allows a low-privileged attacker with network access via HTTP to compromise the system. Successful exploitation can lead to unauthorized data creation, deletion, or modification, unauthorized data access, and partial denial of service (DOS).

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 Oracle's official tools or scripts to verify the version via the application interface or database queries.

Impact Analysis

An attacker could gain unauthorized access to critical data, modify or delete sensitive information, or disrupt system availability. This could lead to data breaches, loss of sensitive customer or business data, and operational disruptions.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Non-compliance risks include legal penalties, fines, and reputational damage.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update (CPU) for Siebel CRM Deployment versions 17.0-26.9 to address the vulnerability. Ensure network access controls restrict HTTP access to trusted sources only. Monitor for unauthorized data modifications or access attempts in Siebel CRM logs.

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