# CVE-2026-101459: Oracle Siebel CRM Deployment Server Infrastructure data manipulation

Source: https://junglewise.ai/threats/cve-2026-101459-vulnerability-in-the-siebel-crm-deployment-product-of-oracle  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-101459 · Severity: high · CVSS 8.3 · Published 2026-10-20

A vulnerability in Oracle Siebel CRM's server deployment component allows a low-privileged attacker with network access to compromise the system via HTTP. Successful exploitation enables unauthorized access, modification, or deletion of critical customer relationship data, as well as partial service disruption. This affects versions 17.0 through 26.9 of Siebel CRM.

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

## Quick answers

**Is CVE-2026-101459 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101459 being exploited in the wild.

**How severe is CVE-2026-101459?** High severity, with a CVSS score of 8.3, published 20 October 2026.

**Which products and versions are affected?** Oracle Siebel CRM Deployment 17.0-26.9.

**Is there a fix for CVE-2026-101459?** 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-2026-101459 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-101459?** Check whether you run 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

The vulnerability in Siebel CRM Deployment's Server Infrastructure component is easily exploitable and requires only network-level HTTP access with low privileges; no user interaction is needed. A successful attack grants unauthorized creation, deletion, and modification of data, complete read access to all accessible CRM data, and the ability to cause partial denial of service. The affected versions are 17.0 through 26.9.

## Affected products

- Oracle Siebel CRM Deployment 17.0-26.9

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.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 privilege escalation in Server Infrastructure](https://junglewise.ai/threats/cve-2026-91444-vulnerability-in-the-siebel-crm-deployment-product-of-oracle)