# CVE-2026-46921: Oracle Siebel CRM privilege escalation in Siebel Cloud Manager

Source: https://junglewise.ai/threats/cve-2026-46921-oracle-siebel-crm-privilege-escalation-in-siebel-cloud-manager  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-17  
License: CC BY 4.0 with a link back

CVE-2026-46921 · Severity: high · CVSS 8.8 · Published 2026-06-17

A vulnerability in Oracle Siebel Cloud Manager allows an attacker with basic user credentials to take full control of the Siebel CRM Cloud environment. Siebel CRM is used by organizations to manage customer relationships and business processes; a successful exploit could lead to the theft of sensitive customer data, unauthorized modification of business records, and total service disruption. This issue is easily exploitable over the network via HTTP.

Technologies: [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-2026-46921 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-46921 being exploited in the wild.

**How severe is CVE-2026-46921?** High severity, with a CVSS score of 8.8, published 17 June 2026.

**Which products and versions are affected?** Oracle Siebel CRM Cloud Applications 17.0-26.5.

**Is there a fix for CVE-2026-46921?** 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-2026-46921 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-46921?** Check whether you run 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 exists in the Siebel Cloud Manager component of Oracle Siebel CRM Cloud Applications (versions 17.0 through 26.5). It is classified as an improper access control or privilege management issue (CWE-269, CWE-284). An attacker with low-privileged user access can exploit this flaw over the network via HTTP without any user interaction. Successful exploitation allows for a complete takeover of the Siebel CRM Cloud Applications, impacting confidentiality, integrity, and availability. Oracle has addressed this in the June 2026 security alert.

## Affected products

- Oracle Siebel CRM Cloud Applications 17.0-26.5

## Timeline

- 2026-06-17: disclosed
- 2026-06-17: advisory: Oracle Critical Patch Update published

## References

- [https://www.oracle.com/security-alerts/cspujun2026.html](https://www.oracle.com/security-alerts/cspujun2026.html)

## Related threats

- [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)
- [Oracle Siebel CRM data integrity tampering in Cloud Manager](https://junglewise.ai/threats/cve-2026-91369-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM unauthorized data access in Cloud Manager](https://junglewise.ai/threats/cve-2026-91368-vulnerability-in-the-siebel-crm-cloud-applications-product-of)
- [Oracle Siebel CRM Cloud Applications privilege escalation in Cloud Manager](https://junglewise.ai/threats/cve-2026-91367-vulnerability-in-the-siebel-crm-cloud-applications-product-of)