CVE-2026-83228: Oracle Siebel CRM Deployment denial of service in Server Infrastructure

CVE-2026-83228 · Severity: high · CVSS 7.5 · Published 2026-09-15

Siebel CRM Deployment is Oracle's customer relationship management system used to manage business interactions. An unauthenticated attacker with network access can remotely crash or hang the Siebel server, causing complete service unavailability and disrupting customer-facing operations and internal sales/service teams.

Technologies: Oracle Siebel CRM, Oracle Siebel CRM Deployment. Vendors: Oracle.

Quick answers

Is CVE-2026-83228 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83228 being exploited in the wild.
How severe is CVE-2026-83228?
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 through 26.7.
Is there a fix for CVE-2026-83228?
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-2026-83228 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-83228?
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 Siebel CRM Deployment. The vulnerability is easily exploitable and requires only network access via TCP with no authentication or user interaction. An unauthenticated attacker can send malformed or crafted network traffic to cause the affected service to hang or crash repeatedly, resulting in complete denial of service. The vulnerability affects versions 17.0 through 26.7, and patches are expected from Oracle.

Affected products

  • Oracle Siebel CRM Deployment 17.0 through 26.7

Timeline

  • 2026-09-15: disclosed

References

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