CVE-2026-70856: High severity Oracle Siebel CRM Deployment vulnerability

Published Aug 18, 2026
·
Updated

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).

Affected Software

2 affected components
Oracle Siebel CRM Deployment>=17.0<=26.6
Oracle Siebel CRM>=17.0<=26.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Oracle Siebel CRM (component: Migration) to a version that resolves this vulnerability.

    Fixed in 17.0-26.6

Event History

Aug 18, 2026
CVE Published
via MITRE·09:02 PM
Data Sourced
via MITRE·09:02 PM
DescriptionSeverity
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Which deployments should be prioritized for assessment?

Oracle Siebel CRM Deployment instances using the Migration component on supported versions 17.0 through 26.6 are affected. Exposure requires network access to the instance via HTTP.

2

Does exploitation require an authenticated Siebel CRM user account?

No. The vulnerability can be exploited by an unauthenticated attacker, but exploitation also requires human interaction by someone other than the attacker and is rated high complexity.

3

What is the potential impact of a successful attack?

A successful attack can result in takeover of Siebel CRM Deployment, with high confidentiality, integrity, and availability impact.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203