CVE-2026-70856

Analyzed Analyzed - Analysis Complete

Siebel CRM Deployment Authentication Bypass

Publication date: 2026-08-18

Last updated on: 2026-08-21

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Migration). Supported versions that are affected are 17.0-26.6. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-08-18

Last Modified

2026-08-21

Generated

2026-09-08

AI Q&A

2026-08-19

EPSS Evaluated

2026-09-07

NVD

CVE-2026-70856

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 17.0 (inc) to 26.6 (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 Deployment (versions 17.0-26.6) that allows an unauthenticated attacker to potentially take over the system via HTTP network access. Exploitation requires human interaction from a victim and has a high impact on confidentiality, integrity, and availability.

Detection Guidance

Detection requires monitoring for unusual HTTP traffic patterns or unauthorized access attempts targeting the Siebel CRM Deployment component. Check Oracle Siebel logs for suspicious migration-related activities or unexpected administrative actions.

Impact Analysis

An attacker could gain full control of your Siebel CRM Deployment system, leading to unauthorized access, data theft, or system disruption. This could compromise sensitive customer or business data stored in the CRM.

Compliance Impact

This vulnerability could lead to breaches of GDPR (data protection) or HIPAA (health data privacy) if exploited, resulting in legal penalties, fines, or reputational damage due to unauthorized access to regulated data.

Mitigation Strategies

Apply the latest Oracle Siebel CRM patches immediately. Restrict HTTP access to the Siebel CRM Deployment component via network firewalls. Monitor for unauthorized administrative actions and disable unnecessary services.

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