CVE-2026-101440

Modified Modified - Updated After Analysis

Unauthenticated Access in Siebel CRM Cloud Applications

Publication date: 2026-10-20

Last updated on: 2026-11-05

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-05

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101440

EUVD

EUVD-2026-105856

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 22.3 (inc) to 26.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Siebel CRM Cloud Applications versions 22.3 to 26.9. It allows an unauthenticated attacker with physical network access to exploit a flaw in the Siebel Cloud Manager component. The attack can lead to unauthorized access to sensitive data or full access to all application data. It may also permit unauthorized modifications to some data.

Detection Guidance

Detection requires monitoring network traffic for unauthorized access attempts to the Siebel CRM Cloud Applications component. Check logs for unusual activity in the Siebel Cloud Manager. Verify physical network segment access controls and inspect for suspicious data access or modification patterns.

Impact Analysis

If you use Oracle Siebel CRM Cloud Applications in versions 22.3 to 26.9, an attacker with physical network access could steal or alter critical business data. This includes customer information, financial records, or other sensitive data stored in the application.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of personal or protected health data, violating GDPR or HIPAA requirements. Organizations using affected versions may face compliance failures, legal penalties, or reputational damage due to data breaches.

Mitigation Strategies

Restrict physical and network access to the Siebel CRM Cloud Applications server. Apply Oracle's latest security patches for versions 22.3-26.9. Monitor and audit data access logs for unauthorized activities. Consider isolating the affected system from critical networks until patched.

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EPSS Chart

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