CVE-2026-83228

Analyzed Analyzed - Analysis Complete

Denial of Service in Siebel CRM Deployment

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83228

EUVD

EUVD-2026-79580

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	siebel_crm	From 17.0 (inc) to 26.7 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a denial-of-service (DoS) vulnerability in Oracle Siebel CRM Deployment versions 17.0 to 26.7. An unauthenticated attacker can remotely exploit it via network access to cause the system to hang or crash repeatedly, making it unavailable.

Detection Guidance

Detection of this vulnerability requires monitoring for abnormal network traffic targeting the Siebel CRM Deployment service on TCP ports. Check for repeated connection attempts or crashes of the service. Use network scanners to identify systems running vulnerable versions of Oracle Siebel CRM Deployment (versions 17.0-26.7).

Impact Analysis

If you use affected Siebel CRM Deployment versions, an attacker could disrupt service, causing downtime and preventing users from accessing the system. This could lead to lost productivity and potential business disruptions.

Compliance Impact

This DoS vulnerability could impact compliance by causing system unavailability, which may violate availability requirements in GDPR (data protection) and HIPAA (health data security). Downtime could lead to data processing delays or breaches of service-level agreements.

Mitigation Strategies

Apply the latest security patches from Oracle to upgrade Siebel CRM Deployment to a non-vulnerable version. If patching is not immediately possible, restrict network access to the affected service via firewalls or disable the service until patches are applied. Monitor for signs of exploitation or service instability.

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