# CVE-2026-83225: Oracle Siebel CRM Deployment denial of service in Server Infrastructure

Source: https://junglewise.ai/threats/cve-2026-83225-oracle-siebel-crm-deployment-denial-of-service-in-server  
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-2026-83225 · Severity: high · CVSS 7.5 · Published 2026-09-15

Oracle Siebel CRM Deployment is a customer relationship management platform used by enterprises to manage client interactions and business processes. An unauthenticated attacker on the network can crash or hang the Siebel server repeatedly, causing a complete denial of service that disrupts all customer-facing and internal CRM operations until the service is manually restarted.

Technologies: [Oracle Siebel CRM](https://junglewise.ai/threats/technologies/siebel-crm), [Oracle Siebel CRM Deployment](https://junglewise.ai/threats/technologies/siebel-crm-deployment). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83225 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83225 being exploited in the wild.

**How severe is CVE-2026-83225?** High severity, with a CVSS score of 7.5, published 15 September 2026.

**Which products and versions are affected?** Oracle Siebel CRM Deployment 17.0–26.7.

**Is there a fix for CVE-2026-83225?** 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-2026-83225 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83225?** Check whether you run Oracle Siebel CRM or Oracle Siebel CRM Deployment 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 is a denial-of-service vulnerability in the Server Infrastructure component of Oracle Siebel CRM Deployment. The vulnerability is easily exploitable and requires no authentication, allowing an unauthenticated attacker with network access to send a crafted TCP payload that triggers a crash or hang condition. The root cause and specific attack mechanism are not detailed in the available advisory. Successful exploitation results in complete unavailability (hang or crash) of the Siebel CRM Deployment service. The vulnerability affects versions 17.0 through 26.7, and fixes or patches should be available from Oracle.

## Affected products

- Oracle Siebel CRM Deployment 17.0–26.7

## 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 unauthorized data access in Server Infrastructure](https://junglewise.ai/threats/cve-2026-91450-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM Deployment unauthorized data access via HTTP](https://junglewise.ai/threats/cve-2026-91449-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM Deployment unauthenticated data access](https://junglewise.ai/threats/cve-2026-91448-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [Oracle Siebel CRM Deployment unauthorized data access](https://junglewise.ai/threats/cve-2026-91447-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)
- [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)