# CVE-2026-83085: Oracle Siebel CRM Cloud Applications authentication bypass in Siebel Cloud Manager

Source: https://junglewise.ai/threats/cve-2026-83085-oracle-siebel-crm-cloud-applications-authentication-bypass-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83085 · Severity: high · CVSS 8.2 · Published 2026-09-15

Oracle Siebel CRM Cloud Applications is a cloud-based customer relationship management platform used to manage customer interactions and business data. A low-privilege attacker with physical access to the network segment hosting Siebel CRM can compromise the system and gain full access to sensitive customer data, modify or delete records, and disrupt service availability. The vulnerability potentially affects other connected products beyond Siebel CRM itself.

Technologies: [Oracle Siebel CRM](https://junglewise.ai/threats/technologies/siebel-crm), [Oracle Siebel CRM Cloud Applications](https://junglewise.ai/threats/technologies/siebel-crm-cloud-applications). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83085 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83085 being exploited in the wild.

**How severe is CVE-2026-83085?** High severity, with a CVSS score of 8.2, published 15 September 2026.

**Which products and versions are affected?** Oracle Siebel CRM Cloud Applications 22.3-26.7.

**Is there a fix for CVE-2026-83085?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-83085 attacked?** It is attacked from the adjacent network, in a hosted service.

**Am I affected by CVE-2026-83085?** Check whether you run Oracle Siebel CRM or Oracle Siebel CRM Cloud Applications at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability in the Siebel Cloud Manager component allows a low-privileged attacker with adjacent network access (physical communication segment) to exploit easily configurable conditions and bypass authentication controls. The attack requires low privileges and no user interaction, enabling unauthorized access to all accessible data in Siebel CRM Cloud Applications, as well as the ability to modify, insert, or delete data and cause partial denial of service. The vulnerability has a scope change, meaning successful exploitation can impact additional products connected to the affected Siebel deployment. The issue affects versions 22.3 through 26.7, and patches should be available through Oracle's standard security update channels.

## Affected products

- Oracle Siebel CRM Cloud Applications 22.3-26.7

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Siebel CRM Deployment privilege escalation in Server Infrastructure](https://junglewise.ai/threats/cve-2026-91446-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM Financial Accounts unauthorized data access](https://junglewise.ai/threats/cve-2026-91430-vulnerability-in-the-siebel-apps-financial-services-product-of)
- [Oracle Siebel CRM Server Infrastructure privilege escalation](https://junglewise.ai/threats/cve-2026-91423-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM information disclosure in Cloud Manager](https://junglewise.ai/threats/cve-2026-91371-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM information disclosure in Cloud Manager](https://junglewise.ai/threats/cve-2026-91370-vulnerability-in-the-siebel-crm-cloud-applications-product-of)